Pelupessy, Danny. “STUDI KARAKTERISTIK MOMEN TORSI AKUMULATOR PEGAS UNTUK PENGGERAK LANGKAH (STEP-DRIVES)”. ALE Proceeding 2 (July 10, 2019): 52-56. Accessed May 4, 2024. https://ojs3.unpatti.ac.id/index.php/ale/article/view/3925.