BAP,DKM,DNM Solar Cell Rifky, RifkyUniversitas Muhammadiyah Prof. DR. HAMKAhttp://repository.uhamka.ac.id/id/eprint/10412/1/BAP%2C%20DKM%2C%20DNM%20Solar%20Cell%206A.pdf Download
BAP, Daftar Kehadiran, Nilai Roslaini, RoslainiUniversitas Muhammadiyah Prof. Dr. HAMKAhttp://repository.uhamka.ac.id/id/eprint/10381/1/Scientific%20BAP%2CDH%2CNilai%2C6A.pdf