Danah Pratama F, Mutiara G, Meisaroh L. A virtual cage for monitoring system semi-intensive livestock’s using wireless sensor network and Haversine method. INFOTEL [Internet]. 5Jun.2023 [cited 6Jul.2024];15(2):201-8. Available from: https://ejournal.ittelkom-pwt.ac.id/index.php/infotel/article/view/944