P. Govindasamy, A. Mohd Noor, N. J. Mohd Isa, A. Olmos, and K. Green, “A Practical Guide to Conducting Systematic Literature Review Using R Software ”, ESSS, vol. 1, no. 1, pp. 35–43, Jun. 2020, doi: 10.37134/esss.vol1.1.4.2020.