Ayele M, Asele A. Impact of Sub Watershed Management Program on Household Livelihoods of Humbo District in Southern Ethiopia: Instrumental Variable Approach. J. Afri. Devt. Stud [Internet]. 2022Jul.27 [cited 2024Nov.7];8(1):21-3. Available from: http://213.55.95.79/index.php/JADS/article/view/3096