“ACID AND HEAT TREATMENT OF ARMENIAN CLINOPTILOLITE”. Proceedings of the YSU B: Chemical and Biological Sciences 58, no. 3 (265) (December 25, 2024): 147–165. Accessed March 10, 2026. https://journals.ysu.am/proceedings-chem-biol/article/view/vol58_no3_2024_pp147-165.