John U. Wolff, D. O. d. D. F. Beginning Indonesian through self instruction. Gramedia.
Chicago Style (17th ed.) CitationJohn U. Wolff, Dede Oetomo dan Daniel Fietkiewicz. Beginning Indonesian Through Self Instruction. Gramedia.
MLA (8th ed.) CitationJohn U. Wolff, Dede Oetomo dan Daniel Fietkiewicz. Beginning Indonesian Through Self Instruction. Gramedia.
Warning: These citations may not always be 100% accurate.