Gaya APA

Hawkins, P. (1989). Supervision in the helping professions: An individual, group and organizational approach . Philadhelpia: Open University Press.

Gaya MLA

Hawkins, Peter. "Supervision in the helping professions: An individual, group and organizational approach". Philadhelpia: Open University Press, 1989. Hibah Buku Dra. Anita Lestari,.