Valdez, Joy, and Emer Quezon. “Project Engineers’ Soft Skills on the Success of Construction Projects at Isabela Second District Engineering Office, Philippines”. Journal of Social Sciences and Humanities 3, no. 1 (June 30, 2025): 18–42. Accessed August 4, 2026. https://csu.org.ph/jssh/article/view/jssh-vol3no1-2025-002.