Saputro WA, Suryawinata M. Online Survey Application System Design Via Telegram at the Bsa Project Surabaya Company: Rancang Bangun Sistem Aplikasi Survei Online Via Telegram Pada Perusahaan Bsa Project Surabaya. PELS [Internet]. 2021 Mar. 30 [cited 2025 Jun. 26];1(1). Available from: https://pels.umsida.ac.id/index.php/PELS/article/view/759