Fadhl S. N. Alsarahi. “ON A TWO-VARIABLE ANALOGUE HUMBERT FUNCTION ”. Journal of the Faculties of Education - University of Aden 19, no. 2 (December 30, 2025): 558–563. Accessed March 7, 2026. https://jef.adenuniv.net/index.php/jef/article/view/157.