“THE STUDY OF THE MINERAL CHEMICAL COMPOSITION OF THE YAKUT SAPONITE MINERAL AND THE PHYSICO-CHEMICAL BASES OF COMPLEX TRACE ELEMENTS” (2022)
American Journal of Pedagogical and Educational Research, 7, pp. 63–70. Available at:
https://americanjournal.org/index.php/ajper/article/view/243 (Accessed: 2 October 2026).