Cita APA (7th ed.)

ZULKARNEIN, M. (1994). Surat buat mama. Ramadhani.

Cita Chicago (17th ed.)

ZULKARNEIN, Muhammad. Surat Buat Mama. Solo: Ramadhani, 1994.

Cita MLA (9th ed.)

ZULKARNEIN, Muhammad. Surat Buat Mama. Ramadhani, 1994.