Guswantoro, Taat. “The Analysis of Light Intensity Transmission Coefficient Through Plastic Fibers for the Design of Closed Room Lighting Without Electricity”. International Journal of Science and Society 3, no. 1 (February 1, 2021): 221-228. Accessed April 20, 2026. http://ijsoc.goacademica.com/index.php/ijsoc/article/view/289.