Yulianti I, Azka J, Darma Putra NM, Astuti B. BURIED WAVEGUIDE POLYMETHYLMETHACRYLATE MODELING FOR REFRACTIVE INDEX SENSOR APPLICATION USING FINITE ELEMENT METHOD. SPEKTRA [Internet]. 2019Dec.30 [cited 2026Apr.6];4(3):133 -142. Available from: http://103.8.12.212:33180/unj/index.php/spektra/article/view/13210