St. Negoro, B. H. (1990). Ensiklopedia Matematika. Ghalia Indonesia.
Chicago Style CitationSt. Negoro, B. Harahap. Ensiklopedia Matematika. Ghalia Indonesia, 1990.
MLA CitationSt. Negoro, B. Harahap. Ensiklopedia Matematika. Ghalia Indonesia, 1990.
Warning: These citations may not always be 100% accurate.