Gaya APA

Stein, D, B. (1999). Ritalin is not the answer : a drug-free, practical program for children diagnosed with ADD or ADHA / David B. Stein . San Francisco: Jossey-Bass Publisher.

Gaya MLA

Stein, David, B.. "Ritalin is not the answer : a drug-free, practical program for children diagnosed with ADD or ADHA / David B. Stein". San Francisco: Jossey-Bass Publisher, 1999. Buku.