APA Citation

Yusup Kristianto, & Benedicta Rini W. (2010). Belajar 123: Mudah dan lancar berhitung. Yogyakarta: Andi Offset.

Chicago Style Citation

Yusup Kristianto, and Benedicta Rini W. Belajar 123: Mudah Dan Lancar Berhitung. Yogyakarta: Andi Offset, 2010.

MLA Citation

Yusup Kristianto, and Benedicta Rini W. Belajar 123: Mudah Dan Lancar Berhitung. Yogyakarta: Andi Offset, 2010.

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