na INLIS000000000395215 20180403094912 0010-0418000068 ta 180403 d | ind 979-407-823-9 304.2 304.2 HUR w Hurijah Ruba'i Wahai Generasi Muda, Apakah Tugasmu? / Hurijah Ruba'i Seri Jakarta : Balai Pustaka, 1996 97 hlm. : Ilust. ; 21 cm. Lingkungan Hidup - 375/PS/H/II/1996 376/PS/H/II/1996