PUTRA, Y. E.; SULISTIYANTI, S. R.; SETYAWAN, F. A.; SAMOSIR, A. S. Rapidness Characteristics of Ultrasonic Wave Propagation on Eggs Using HC-SR04 Module. Journal of Engineering and Scientific Research, [S. l.], v. 3, n. 1, p. 26 –, 2021. DOI: 10.23960/jesr.v3i1.72. Disponível em: https://jesr.eng.unila.ac.id/index.php/ojs/article/view/72. Acesso em: 23 jun. 2025.