na INLIS000000000012306 20190131094800 0010-0119001238 ta 190131 i 0 ind 170 170 DID e Didi Wahyu Sudirman Etika sekretaris dan human relationsnya / Didi Wahyu Sudirman Cet.1 Yogyakarta : Liberty, 1982 x, 76 hlm ; 21 cm Etika, Filsafat Moral 70/PUK/1994