Srinuvasa Rao, B, et al. “Fixed Point Theorems Under Caristi’s Type Map on C∗ -Algebra Valued Fuzzy Soft Metric Space”. International Journal of Engineering & Technology, vol. 7, no. 3.31, Aug. 2018, pp. 111-4, https://doi.org/10.14419/ijet.v7i3.31.18277.