Kautsar, I.A. and Anggoro, G.D. 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 (Oct. 2026), 10.21070/ijins.v25i4.2390. DOI:https://doi.org/10.21070/ijins.v25i4.2390.