Siagian, Parlin, Hamdani Hamdani, & M. Erpandi Dalimunthe. " MITIGATION OF SOLAR CELL HEAT BY USING SUNSCREEN FILM." Proceeding International Conference Keputeraan Prof. H. Kadirun Yahya [Online], 1.1 (2022): 42-51. Web. 4 May. 2024