Satyanarayana, Bavanari, and U. Bindu Madhavi. “Cubic H-Ideals in BCK-Algebras”. Journal of Progressive Research in Mathematics 4, no. 4 (August 8, 2015): 408-413. Accessed April 26, 2025. https://scitecresearch.com/journals/index.php/jprm/article/view/312.