Riski Rusmalinda, Joni Kawijaya. The Tradition of Mutual Cooperation and Environmental Awareness of the Sumbergede Village Community, Sekampung District, East Lampung as Character Values ​​in Biology Learning. service [Internet]. 2025 Aug. 22 [cited 2026 Jan. 19];2(2):102-11. Available from: https://publicservice.hellowpustaka.id/index.php/i/article/view/28