Rajagukguk, Juniastel, Lia Yuliantini, Fitrilawati Fitrilawati, Mitra Djamal, and Jakrapong Kaewkhao. 2020. “Investigation of Dy3+ Ion Doped Borate Glasses and Their Potential for WLED and Laser Application”. Journal of Engineering and Technological Sciences 52 (6):891-906. https://doi.org/10.5614/j.eng.technol.sci.2020.52.6.9.