Perhaps you should try some spelling variations:
kata pengantar » suatu pengantar
gaya belajar » ayo belajar, cara belajar, dalam belajar
sejarah beti » sejarah batik, sejarah bani, sejarah kecil
bagi kata » bagi mata, bagi para, bagi kaum
prof dna » prof nina, prof dr, prof drs
beti dwi » besti dwi, beta dwi, budi dwi

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( bagi kata pengantar prof dna dr ) OR ( gaya belajar dan sejarah beti dwi ))~.
• Adding a wildcard symbol may retrieve word variants: (( bagi kata pengantar prof dna dr ) or ( gaya belajar dan sejarah beti dwi ))*.