Graham, b. (1998). The Secret of Happiness= Rahasia Kebahagiaan/ Billy Graham; Penerjemah, Wim Salampessy. Batam: interaksa.
Style de citation Chicago (17e éd.)Graham, billy. The Secret of Happiness= Rahasia Kebahagiaan/ Billy Graham; Penerjemah, Wim Salampessy. Batam: interaksa, 1998.
Style de citation MLA (8e éd.)Graham, billy. The Secret of Happiness= Rahasia Kebahagiaan/ Billy Graham; Penerjemah, Wim Salampessy. Batam: interaksa, 1998.
Attention : ces citations peuvent ne pas être correctes à 100%.