Marpaung, P. (2007). Setengah Isi Setengah Kosong: "Half Full - Half Empty". MQS Publishing.
Chicago Style (17th ed.) CitationMarpaung, Parlindungan. Setengah Isi Setengah Kosong: "Half Full - Half Empty". MQS Publishing, 2007.
MLA (8th ed.) CitationMarpaung, Parlindungan. Setengah Isi Setengah Kosong: "Half Full - Half Empty". MQS Publishing, 2007.
Warning: These citations may not always be 100% accurate.