APA Citation

Roy, Edwards, M., & Sumantri, B. (1993). Membantu anak mamahami matematika. Jakarta: Gramedia.

Chicago Style Citation

Roy, Mary Edwards, and Bambang Sumantri. Membantu Anak Mamahami Matematika. Jakarta: Gramedia, 1993.

MLA Citation

Roy, Mary Edwards, and Bambang Sumantri. Membantu Anak Mamahami Matematika. Jakarta: Gramedia, 1993.

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