(Indonesian) Fill-In Puzzle

Question

I made this seasonal puzzle to celebrate the upcoming Eid al-Fitr in Indonesia. So actually there are four thematic hidden phrases that can be found after solving the puzzle. But because they are Indonesian phrases, you are not required to find them.

This is a standard Fill-in puzzle.

Rules:

• You are given a grid and a list of words.
• You have to find a solution that fits all of the available words into the grid (as in standard Crossword).
• Each word is used exactly once.

Note: "HURUF" simply means "LETTERS".

Answer 1

Step-by-step deduction

Start from the bottom:

There's only one 2-letter word LA, so it goes at the very bottom middle. Then there's only one 5-letter word with L in the middle, so STLKF goes there. We can rapidly fill in around that to get to here:

Now consider the 3-letter words beginning with P.

If it's PIA, then the 4-letter word ending with I must be PREI, but there are no 5-letter words ending with P. So it's PCB and then AADC, and then we can rapidly fill in NTB, DTE, DIE, AANG, AGE, and there are only two 5-letter words ending with A which share the same penultimate letter, so they must be DRAMA and OBAMA in some order.

Also from AGE there must be a 6-letter word beginning with A, whose fifth letter begins a 7-letter word, so that must be INDOSAT. Also the fourth letter of that 6-letter word must be A; it's also the fourth letter of a 5-letter word which must be ORMAS or ZAKAT, and the second letter of that is the fourth letter of a 6-letter word, so we can fill in ZAKAT, ZEN, TNI, NANTI, then ALBAIT and ASSAIA, then YENISEI going up and SOY.

Now in the top right we have limited possibilities:

The only 2-letter words with O in the middle are AON and SOY, but its first letter must be the last letter of a 7-letter word, so it's AON and WICHITA, then NEA, RTS, CHIEF, SWIPOA, FBI.

Two to the left of SWIPOA is another 6-letter word; its first letter is the second letter of either CPNSS or RAKSA, and its third letter is the second letter of either ANGIN or DUNIA. So we can fill in PIUDDR, CPNSS, DUNIA, SIA, CND, DUO, RUROUNI, and also ANGIN, MBA, LEM back on the right.

Now there's only two 6-letter words and two 7-letter words left (AOPMES, RIYALS and ABSENSI, OAKLAND), all over on the left-hand side and connected to each other. The only way we can do that is as follows:

Now there's lots of other stuff to be filled in around those long words on the left, and some other deductions which lead us all the way to the centre.

Now only four 5-letter words remain to be used:

ALIEN, KOBRA, MINTA, RAKSA. All of them can be filled in directly from the single letters we have for each of them.

And all that's left is 3-letter words, which we painfully fill in using whatever deductions we can use.

Firstly NIP, KIM, PIA, OEK in the lower left (only one word left beginning with N, and the rest falls into place).
Then BEL, BRI, TEA, TUA in the upper left (only one word left ending with L) followed by IUR, AIR, RIO, HBO in the extreme top left (only one word left with U in the middle).
Then RAI, ALI in the lower left (only one word left beginning with R). The word beginning with BA could still be either BAK or BAR, but there's no other word ending with AR, so it must be BAK and IAK.
Finally QNF, QNT, BNI, BAR in the extreme bottom right.

Final solution

For the thematic hidden messages, I defer to Gareth's superior knowledge of Indonesian Indonesian puzzles :-)

Answer 2

Here's the grid with the messages highlighted.

The messages say

around the outside: HARI RAYA IDUL FITR (which I think is just another way of saying Eid al-Fitr);
above: MINAL AIDIN WAL FAIZIN (similar to the "Many happy returns" used in English on people's birthdays);
below: MOHON MAAF LAHIR BATIN (which Google Translate renders as "Forgive me body and soul"; I guess it's a greeting used during Ramadan?);
in the middle: SELAMAT LEBARAN (equivalent to the more familiar "Eid mubarak").