Cita APA (7th ed.)

SYAFEI, A. (1988). English pronunciation: Theory and practice. Depdikbud.

Cita Chicago (17th ed.)

SYAFEI, Anas. English Pronunciation: Theory and Practice. Jakarta: Depdikbud, 1988.

Cita MLA (9th ed.)

SYAFEI, Anas. English Pronunciation: Theory and Practice. Depdikbud, 1988.