Beloy, Julianne Cyrose D., Shirley D. Garcia, Kevin Jamir F. Pigao, and Rosauro C. Pineda Jr. 2023. “Analyzing the Effectiveness of Property Developers’ In-House-Developed Versus Outsourced Systems on Procurement Efficiency”. Journal of Business and Management Studies 5 (5): 109-32. https://doi.org/10.32996/jbms.2023.5.5.9.