MĂNTESCU, Gabriela, Gabriel GORGHIU, and Gabriel STATE. “Promoting Interactive Knowledge to Students in Non-Formal Education Activities Dedicated to Solar Energy Processes”. LUMEN Proceedings 1 (August 18, 2017): 448-458. Accessed October 6, 2026. https://proceedings.lumenpublishing.com/ojs/index.php/lumenproceedings/article/view/446.