S. Deepthi Mary Tresa, S. Divya Mary Daise, and Shery Fernandez. “The Lattice of Pre-Complements of a Classic Interval Valued Fuzzy Graph”. Malaya Journal of Matematik, vol. 8, no. 03, July 2020, pp. 1311-20, doi:10.26637/MJM0803/0102.