TY - BOOK AU - Nikaz, TI - Sains T2 - Teman pusat sumberku : fakta mini SN - 9838238112 U1 - 039.992302 23 PY - 2001/// CY - Petaling Jaya, Selangor : PB - Penerbit Prisma Sdn. Bhd. , KW - Question and answers ER -