Barnido, Kris D., and Stephanie O. Espinola. “On Pitchfork Domination Number of Corona of Some Graphs”. Communications in Mathematics and Applications 15, no. 5 (December 31, 2024): 1431–1442. Accessed October 26, 2025. https://www.journals.rgnpublications.com/index.php/cma/article/view/2866.