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Gaya APA

Purnomo, Y, W. (2018). Serial Matematika untuk SD : Bilangan Cacah dan Bulat . Bandung: Alfabeta.

Gaya MLA

Purnomo, Yoppy, Wahyu. "Serial Matematika untuk SD : Bilangan Cacah dan Bulat". Bandung: Alfabeta, 2018. Text.