APA (7th ed.) Citation

Negoro, S. T., & Harahap, B. (1982). Ensiklopedia matematika. Ghalia Indonesia.

Chicago Style (17th ed.) Citation

Negoro, S. T., and B. Harahap. Ensiklopedia Matematika. Jakarta: Ghalia Indonesia, 1982.

MLA (9th ed.) Citation

Negoro, S. T., and B. Harahap. Ensiklopedia Matematika. Ghalia Indonesia, 1982.

Warning: These citations may not always be 100% accurate.