N. Al-Sayid, N. Ibrahim, and H. . Al-Attar, “AN IOT-BASED WEARABLE SENSOR SYSTEM FOR MONITORING THE HEALTH, RUMINATION, AND ESTRUS CYCLE OF DAIRY COWS IN INDONESIA”, Tech. Agriculturae Studium of Research, vol. 2, no. 6, pp. 310–320, Dec. 2025.