Hidayat, Sahrul, Fitrilawati Fitrilawati, Ayi Bahtiar, Rustam Siregar, Rahmat Hidayat, and M Ozaki. 2016. “Application of Hybrid Polymer As Laser Devices Based on 2D Grating With Square Structure”. Indonesian Journal of Physics 21 (3), 83-87. https://doi.org/10.5614/itb.ijp.2010.21.3.4.