APA (7th ed.) Citation

Rangkuti, F. (2000). Humor Matematika 1: Increasing your Kid Math intelligence/ Freddy Rangkuty dan Siti Haniah. Jakarta: Elex Media Komputinndo.

Chicago Style (17th ed.) Citation

Rangkuti, Freddy. Humor Matematika 1: Increasing Your Kid Math Intelligence/ Freddy Rangkuty Dan Siti Haniah. Jakarta: Elex Media Komputinndo, 2000.

MLA (8th ed.) Citation

Rangkuti, Freddy. Humor Matematika 1: Increasing Your Kid Math Intelligence/ Freddy Rangkuty Dan Siti Haniah. Jakarta: Elex Media Komputinndo, 2000.

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