buku itu buat apa sih
buku itu buat apa sih ?
b u k u WORD_BOUNDARY i t u WORD_BOUNDARY b u a t WORD_BOUNDARY a p a WORD_BOUNDARY s i h WORD_BOUNDARY
b u k u WORD_BOUNDARY i t u WORD_BOUNDARY b u a t WORD_BOUNDARY a p a WORD_BOUNDARY s i h WORD_BOUNDARY ? WORD_BOUNDARY