“IMPLEMENTATION OF QUICK RESPONSE (QR) CODE ON SAFETY DATA SHEETS (SDS) OF CHEMICALS TO IMPROVE OCCUPATIONAL HEALTH AND SAFETY IN EDUCATIONAL LABORATORIES”. Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit 24, no. 1 (August 31, 2025): 29–40. Accessed September 10, 2025. http://e-jurnal.atk.ac.id/new-jurnal/index.php/bptkspk/article/view/104.