OBISTON, D. (1985). Bahasa Inggeris praktikal. Times Books International.
Chicago Style (17th ed.) CitationOBISTON, David. Bahasa Inggeris Praktikal. Singapore: Times Books International, 1985.
MLA (8th ed.) CitationOBISTON, David. Bahasa Inggeris Praktikal. Times Books International, 1985.
Warning: These citations may not always be 100% accurate.