Gaya APA

Ashari, H. et al (2009). Effects of pH on calcium carbonate precipitation under magnetic field (Vol. 13, No. 2, Tahun). : American foundations information service.

Gaya MLA

Ashari, Hidyat. et al. "Effects of pH on calcium carbonate precipitation under magnetic field". Vol. 13, No. 2, Tahun : American foundations information service, 2009. Text.