Puspa, Y. P. (1992). Principal English Grammar / Yan Pramadya Puspa. Aneka Ilmu.
Chicago Style (17th ed.) CitationPuspa, Yan Pramadya. Principal English Grammar / Yan Pramadya Puspa. Aneka Ilmu, 1992.
MLA (8th ed.) CitationPuspa, Yan Pramadya. Principal English Grammar / Yan Pramadya Puspa. Aneka Ilmu, 1992.
Warning: These citations may not always be 100% accurate.