Kautsar, Irwan Alnarus, and Gilang Dwi Anggoro. 2026. “Optimization Of The Process Of Inputting Official Travel Orders (Sppd) Through An Application With A User Friendly Interface In Bpvp Sidoarjo (Case Study : Front-End Design): Optimalisasi Proses Penginputan Surat Perintah Perjalanan Dinas (Sppd) Melalui Aplikasi Dengan Antarmuka Ramah Pengguna Di Bpvp Sidoarjo (Studi Kasus : Perancangan Front-End)”. Indonesian Journal of Innovation Studies 25 (4):10.21070/ijins.v25i4.2390. https://doi.org/10.21070/ijins.v25i4.2390.