Mashoedah M, Dhewa OA, Roviyan ZS, Leo D, Masyitoh SL. Crowd Detection System Using Blimp Drones as an Effort to Mitigate the Spread of Covid-19 Based on Internet of Things. ELINVO [Internet]. 2021 Dec. 27 [cited 2025 May 9];6(2):157-65. Available from: https://journal.uny.ac.id/index.php/elinvo/article/view/43873