na INLIS000000000022226 20190401100952 0010-0918022226 190401 | | 979-1078-11-4 id 300 361.1 Erw m Erwan Agus Purwanto, Ph.D Metode Penelitian Kuantitatif Yogyakarta : Gava Media, 2007 xviii + 215 hlm .; 14 X 21 cm 3345/Pu/Klt 3346/Pu/Klt