Nonik Silvia Agustin et al. 2021. Microcontroller-based Bird Pest Repellent in Rice Plants: Rancang Bangun Alat Pengusir Hama Burung Pada Tanaman Padi Berbasis Mikrokontroler. Procedia of Engineering and Life Science. 1, 1 (Mar. 2021). DOI:https://doi.org/10.21070/pels.v1i1.762.