Muhammad Khoiruman, and Siti Fatonah. “Eco-Labeling Analysis of Eco-Friendly Electronic Products in Surakarta, Indonesia”. European Journal of Scientific Exploration 4, no. 1 (February 15, 2021): 1–12. Accessed April 19, 2024. https://syniutajournals.com/index.php/EJSE/article/view/186.