Icha Novalita Nainggolan and Ratih Ade Verlina Simbolon 2025. Designing an Internet of Things-Based Automatic Door Lock System Using Esp32 Cam, Keypad, Fingerprint with Telegram Notifications at PT. Hosana Inti. Journal Majelis Paspama. 3, 01 (Jan. 2025), 56–67.