na YOGYA-10100000000864 20101005085753172 ind 010-101000000000864 UT 312 Sem M Sembiring, R. K Materi pokok demografi: STAT 4333/3 sks/modul 6-9 Cet. 1 Jakarta Universitas Terbuka Depdikbud 1987 [131] hlm . : ilus . ; 29 cm Demografi YOPDYOG[B] A000007560