Gaya APA

JOHNSON, S, R., Johnson, R, B. (1970). Developing Individualized Instructional Material (5th ed.). California: Westinghouse Learning Press.

Gaya MLA

JOHNSON, Stuart, R.., Johnson, Rita, B.. "Developing Individualized Instructional Material". 5th ed. California: Westinghouse Learning Press, 1970. Buku.