APA Alıntı

Gebrehanna, E., Berhane, Y., & Worku, A. (2014). Khat chewing among Ethiopian University Students- a growing concern. BMC Public Health.

Chicago Stili Alıntı

Gebrehanna, Ewenat, Yemane Berhane, ve Alemayehu Worku. "Khat Chewing Among Ethiopian University Students- a Growing Concern." BMC Public Health 2014.

MLA Alıntı

Gebrehanna, Ewenat, Yemane Berhane, ve Alemayehu Worku. "Khat Chewing Among Ethiopian University Students- a Growing Concern." BMC Public Health 2014.