Juquiana, Steffan-Mae, John Carlo Padua, Herminia Ilao, Joan Simangan, and Levi Esteban Elipane. 2018. “Teaching of Angle of Elevation by Integrating Angle Measurement in Ancient Egyptian Mathematics”. International Journal of Engineering and Technology 7 (4.1): 76-80. https://doi.org/10.14419/ijet.v7i4.1.28229.