APA (7th ed.) Citation

Zain, A., Bong, E., Abdullah, S., Abdullah, M., Homam, M., & Ho, Y. H. (2007). Some effects of earthquakes at North Sumatra to the total electron content in the Ionosphere.

Chicago Style (17th ed.) Citation

Zain, A.F.M, EH Bong, S. Abdullah, M. Abdullah, M.J Homam, and Yih Hwa Ho. Some Effects of Earthquakes at North Sumatra to the Total Electron Content in the Ionosphere. 2007.

MLA (9th ed.) Citation

Zain, A.F.M, et al. Some Effects of Earthquakes at North Sumatra to the Total Electron Content in the Ionosphere. 2007.