Thanatporn Bantaojai, Chatsuda Chanmanee, Patchara Muangkarn, and C. Suanoom. “ome ixed oint heorems for R˜n-ontraction and R˜n-annan appings in etric paces”. cience & echnology sia, ol. 26, no. 3, Sept. 2021, pp. 14-21, https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/241464.