Isahac, Sheryl-Ann. “Self-Perceived Competencies of Rural Health Nurses on Cold Chain Management of Vaccines in Sulu”. SOCIAL PSYCHOLOGY AND HUMAN EXPERIENCE 2, no. 1 (May 16, 2025): 1–23. Accessed July 26, 2026. https://sphe.stratworksresearch.com/index.php/sphe/article/view/58.