K. R. Ostonal, R. M. D. Ramirez, J. R. Sotto, M. G. Unico, and M. V. Abante, “Leadership Practices and Employee Motivation of Selected Tenant General Contractors in a Medium-Scale Commercial Project: Basis for a Workforce Engagement Program”, Int. J. Sustain. Integr. Stud., vol. 1, no. 4, pp. 9–15, Nov. 2026, doi: 10.65339/ijsis.V1.I4.251.