Teguh Puja Negara, et al. “Design Simulation of Circular Photonic Crystal Structures for the Development of Biomedical Sensor Based on Finite Difference Method”. International Journal of Nanoelectronics and Materials (IJNeaM) , vol. 16, no. December, Dec. 2023, pp. 9-16, doi:10.58915/ijneam.v16iDECEMBER.381.