na INLIS000000000000062 0010-0920000062 Asas-asas penelitian behavioral Fred N. Kerlinger H.J. Koesoemanto Edisi 3 Yogyakarta Gajah Mada University Press 1990 xxv, 1167 p.: ill.; 22 cm. 167 167 PENELITIAN BEHAVIORAL. 64 64 64