Shahnazaryan, D.A. “ON FUNCTIONAL EQUATION OF ASSOCIATIVITY WITH RIGHT QUASIGROUP OPERATIONS”. Proceedings of the YSU A: Physical and Mathematical Sciences 53, no. 3 (250) (December 16, 2019): 150–155. Accessed May 10, 2024. https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol53_no3_2019_pp150-155.