Nagaral Pandit Sanatammappa, R. Krishnakumar, and K. Dinesh. “Fixed Point Theorems of Integral Type Contraction in B-Metric Spaces”. Malaya Journal of Matematik, vol. 9, no. 01, Jan. 2021, pp. 547-50, https://www.malayajournal.org/index.php/mjm/article/view/1075.