Syamsu. (1984). Manusia dan ekonomi. Thinker's Library.
Chicago Style (17th ed.) CitationSyamsu. Manusia Dan Ekonomi. Johor Bahru: Thinker's Library, 1984.
MLA (8th ed.) CitationSyamsu. Manusia Dan Ekonomi. Thinker's Library, 1984.
Warning: These citations may not always be 100% accurate.