Čupona, Ǵorǵi, Celakoski, N. and Ilić, S. (2002) “ON MONOASSOCIATIVE GROUPOIDS”, Matematichki Bilten, 26(1), pp. 5–16. Available at: https://bilten.smm.org.mk/index.php/bilten/article/view/1680 (Accessed: 14 August 2026).