De Laurent D, Sumadi, Kendall Malik, Rahmad Washinton. INOVASI PERANCANGAN JAM TANGAN SEBAGAI PERWUJUDAN OPTIMALISASI MATERIAL LIMBAH BATOK KELAPA. EZRA SCIENCE BULLETIN [Internet]. 2025 Jul. 30 [cited 2026 Mar. 28];3(2):1337-45. Available from: https://ezra.krabulletin.com/index.php/ezrascibin/article/view/390