Jun, Young Bae, Madad Khan, Florentin Smarandache, and Seok-Zun Song. “Length Neutrosophic Subalgebras of BCK/BCI-Algebras”. Bulletin of the Section of Logic 49, no. 4 (October 8, 2020): 23 pp. Accessed May 17, 2024. https://czasopisma.uni.lodz.pl/bulletin/article/view/8257.