Ngeno, Joseph Kipruto. “THE UTILIZATION OF PROJECT MANAGEMENT TECHNIQUES IN THE CONSTRUCTION OF PYRAMIDS IN EGYPT WITH SPECIAL REFERENCE TO THE GREAT PYRAMID IN GIZA”. IJRDO - Journal of Business Management 8, no. 9 (September 29, 2022): 23-31. Accessed January 4, 2025. http://cpcalendars.ijrdo.org/index.php/bm/article/view/5317.