na INLIS000000000000718 ind 979-420-064-6 0010-1023000531 303.1 303.1 NAW m Nawawi, Hadari Metode Penelitian Bidang Sosial Hadari Nawawi Cet. 6 Yogyakarta Gajah mada university press 1993 x, 250 p. 21 cm Metode Penelitian