Pelegrino, Gary Cris R., and Emilio D. Matheu Jr. “The Impact of Quality Management Systems of Selected Businesses in Caraga Region, Philippines”. Randwick International of Social Science Journal 7, no. 2 (April 30, 2026): 82-87. Accessed May 8, 2026. https://www.randwickresearch.com/index.php/rissj/article/view/1287.