The contents of the quran are more concerned with people's worldly affairs. so that, islam is looked upon as a realistic and natural religion. it teaches social behaviour, religious obligations and prohibitions, facts of biology, history, astronomy, cosmology, medicine are found in abundance in the quran. ; Buku ini membahas tentang science and revalation, enchanching scintific education, natural phenomena life with and from water, notes of production economics. ; Reference: hlm.80-86