Nurwidayat, A., B. Sudarsono, K. Pratiwi, and M. D. Havity. “Implementation of Information System in Submitting Employees’ Annual Leave at PT. Tesco Indomaritim”. Sinkron : Jurnal Dan Penelitian Teknik Informatika, vol. 3, no. 2, Mar. 2019, pp. 97-103, doi:10.33395/sinkron.v3i2.10030.