Gaya APA

GUNARSA, S, D., FELDMAN, R, S. (1992). Elements of Psychology / Robert S. Feldman (Ed. International.). New York: McGraw-Hill.

Gaya MLA

GUNARSA, Singgih, D.., FELDMAN, Robert, S.. "Elements of Psychology / Robert S. Feldman". Ed. International. New York: McGraw-Hill, 1992. Text.