Nooraldeen .O. AL-saklady, and Mahioub .M. Q. Shubatah. “The 2-Domination Number in Interval-Valued Fuzzy Graphs”. IJRDO -JOURNAL OF MATHEMATICS 6, no. 3 (March 16, 2020): 13-30. Accessed December 1, 2024. http://545406.voltageenergyhk.tech/index.php/m/article/view/3535.