Dessalegn, Yigzaw, Habtemariam Assefa, Teshome Derso, and Mesfin Tefera. 2014. “Mango Production Knowledge and Technological Gaps of Smallholder Farmers in Amhara Region, Ethiopia”. American Scientific Research Journal for Engineering, Technology, and Sciences 10 (1):28-39. https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/626.