Cita APA (7th ed.)

SUGIONO, L. (1993). A reference grammar for english course, beginners, SMA student, english teachers. Andi Offset.

Cita Chicago (17th ed.)

SUGIONO, L.Gito. A Reference Grammar for English Course, Beginners, SMA Student, English Teachers. Yogyakarta: Andi Offset, 1993.

Cita MLA (9th ed.)

SUGIONO, L.Gito. A Reference Grammar for English Course, Beginners, SMA Student, English Teachers. Andi Offset, 1993.