Freddy Rangkuti, S. H. (2000). Humor Matematika 2. Elex Media.
Chicago Style (17th ed.) CitationFreddy Rangkuti, Siti Haniah. Humor Matematika 2. Elex Media, 2000.
MLA (8th ed.) CitationFreddy Rangkuti, Siti Haniah. Humor Matematika 2. Elex Media, 2000.
Warning: These citations may not always be 100% accurate.