Okakwu, Ignatius, Akintunde Samson Alayande, Titus O Ajewole, & Olakunle E Olabode. " Techno-economic analysis of utilizing a directly-coupled photovoltaic water pumping system for domestic application in Nigeria." Mehran University Research Journal of Engineering and Technology [Online], 42.2 (2023): 197-204. Web. 5 May. 2024