“ON (α – β) - CONTRACTIVE MAPPING OF PARTIAL B-METRIC SPACES AND FIXED POINT THEOREM”. Journal of the College of Basic Education 24, no. 100 (December 8, 2022): 97–106. Accessed June 4, 2026. https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/6333.