Ashari, Ilham Firman, Ardi Gaya Manalu, Rahmat Setiawan, Mugi Praseptiawan, Dita Alviuni P, and Sisilia Juli A. 2021. “Security Guard Scheduling System Using Genetic Algorithm and Tournament Selection: Case Study: Institut Teknologi Sumatera”. Journal of Applied Informatics and Computing 5 (2):202-7. https://doi.org/10.30871/jaic.v5i2.3464.