Arshad, Mohd Anuar, et al. “Organizational Sustainability Through the Application of Holistic Human Resources Development Model (HHRDM) in Multi- National Companies of Penang, Malaysia”. International Journal of Psychosocial Rehabilitation, vol. 24, no. 7, Sept. 2020, pp. 21-28, https://doi.org/10.61841/rc5dd531.