1.
HARITON A, CALMUŢCHI L. TEOREMA CELOR TREI PERPENDICULARE ŞI RECIPROCELE EI. ActaEd [Internet]. 2019Jun.26 [cited 2024Oct.16];3(2):118-25. Available from: https://revistaust.upsc.md/index.php/acta_educatie/article/view/114