00293     2200121   4500020001500000084001100015090001700026100001900043245002900062260003400091300002000125650002600145  a9791073619  a001.42  a001.42 Ulb m  aUlber Silalahi10aMetode penelitian sosial  aBandungbRefika Aditamac2012  a518 hlm.; 20 cm  ametodologi penelitian