na INLIS000000000002386 20180705122414 0010-0718000151 ta 180705 i 0 ind 978-979-25-5223-5 010 001.5 MUS Mustafa Edwin Nasution Proses Penelitian Kuantitatip / Dr. Mustafa Edwin Nasution Cet .3 jakarta : FEUI, 2008 156 ; 22 cm 19.108/BPAD/2010 19.109/BPAD/2010