Y. Salim, C. Tzu Enn, S. Hamzah, M. Misiran, and H. Sapiri, “RROI Analysis in Assessing Risk of Open Source Software in Organization: A Case Study in Malaysia”, J. Adv. Res. Bus. Manag. Stud., vol. 8, no. 1, pp. 66–75, Oct. 2020.