Pengantar Filsafat - Burhanuddin Salam (Bumi Aksara, 1995)
ir,c.1; nr. c.2-4 / ir,c.5-6,7,sgh c8/ir,c.9-WS.C.10,11/ir,c.12/tr,c.13/ir,c.14/oen, c.15-18/en, c.19/stoc2, c.1-3,5-9,11,14-19/stoc3=c.20-23