Celakoska-Jordanova, Vesna, Emilija Celakoska, and Valentina Miovska. “FREE POWER-SEMICOMMUTATIVE TERNARY GROUPOIDS”. Matematichki Bilten 42, no. 2 (January 1, 2018): 35–48. Accessed August 14, 2026. https://bilten.smm.org.mk/index.php/bilten/article/view/1864.