L. Malicay, Rosalyn, and Jonathan C Gano-an. “Factors Affecting Work Productivity Among Employees in the Business Process Outsourcing (BPO) Industry”. International Research Journal of Business Studies, vol. 16, no. 2, Dec. 2023, pp. 111-2, https://doi.org/10.21632/irjbs.16.2.111-121.