C. Widjayanti, B. Katigo, R. Widiastuti, and A. Setyawan, “DESIGN AND DEVELOPMENT OF A WEBSITE-BASED INFORMATION SYSTEM FOR STUDENT ALUMNI ASSOCIATION OF STIKOM YOS SUDARSO (HAMSYS) PURWOKERTO”, jelekn, vol. 9, no. 1, pp. 13 - 27, Jul. 2023.