na INLIS000000000003970 20180827035924 0010-0818000472 ta 180827 i 0 ind 500 507 SUT m sutrisno hadi Metodologi research jilid 2 / Prof.Drs.sutrisno hadi,M.A Ed,1. Cet 8-17 Yogyakarta : Andi offset, 1980 vii,918 hlm ; 21 cm 2939/PUK/1994