Galloway, Dale E. Bersikaplah Positif. - Cet. 3. - Jakarta: BPK Gunung Mulia, 1993 - 74p. 18 cm. ISBN: 9794153753 Subjects--Topical Terms: Kehidupan--KristianiBerpikir positif LC Class. No.: LB1051 / .G174 1975 Dewey Class. No.: 248.4