Bala Abdullahi, Nura Mu’az Muhammad, R. K. Al-Dadah, and S. Mahmoud. “Optimum Tilt Angle for Solar Collectorsused in Kano, Nigeria”. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 56, no. 1 (March 28, 2024): 31–42. Accessed July 22, 2024. https://semarakilmu.com.my/journals/index.php/fluid_mechanics_thermal_sciences/article/view/3078.