Gito, S., L.(1993).A Reference grammar : for English courses, beginners, SMA students, English teachers / L. Gito Sugiono (Ed.ke-1, Cet.1).:.
Gaya MLA
Sugiono, L., Gito."A Reference grammar : for English courses, beginners, SMA students, English teachers / L. Gito Sugiono".Ed.ke-1, Cet.1:,1993.Textbook.