Riyanto, S., NH, E., & NH, L. (2008). A Handbook of English Grammar: An Effective Way To Master English (Cara Efektif Mahir Berbahasa Inggris). Pustaka Pelajar.
Chicago Style (17th ed.) CitationRiyanto, Slamet, Emilia NH, and Leila NH. A Handbook of English Grammar: An Effective Way To Master English (Cara Efektif Mahir Berbahasa Inggris). Pustaka Pelajar, 2008.
MLA (8th ed.) CitationRiyanto, Slamet, et al. A Handbook of English Grammar: An Effective Way To Master English (Cara Efektif Mahir Berbahasa Inggris). Pustaka Pelajar, 2008.
Warning: These citations may not always be 100% accurate.