I. Inchan, K. Gajai, T. Yuying, S. Youyen, and W. Chantakun, “COMMON FIXED POINT THEOREMS FOR SOME CONTRACTIVE CONDITION WITH φ-MAPPING IN COMPLEX VALUED B-METRIC SPACES”, J. Nonlinear Anal. Optim., vol. 12, no. 1, pp. 29–36, Apr. 2021.