Senapati, Ratikanta, and Sunil Kumar Singh. “Continuous Professional Development (CPD) of In-Service School Teachers in India : A Systematic Review”. INDIAN EDUCATIONAL REVIEW, vol. 60, no. 1, Jan. 2022, pp. p. 69-87, http://14.139.250.109:8090/index.php/ier/article/view/3316.