Sina, Z., Kosova, R., Reka, A., Biçaku, A., & Starova, A. (2024). The missing mathematics in high school. Theorems, proofs and geometric constructions . International Journal of Advanced Natural Sciences and Engineering Researches, 8(4), 279–286. Retrieved from https://as-proceeding.com/index.php/ijanser/article/view/1847