Nugrahaningsih, Dian, and Mega Yudhi Afnoto. 2017. “SISTEM INFORMASI DATA ALUMNI POLITEKNIK MUHAMMADIYAH PEKALONGAN BERBASIS WEB”. Jurnal Surya Informatika 4 (1):47-55. https://doi.org/10.48144/suryainformatika.v4i1.324.