Ma’arif, Faqih, Slamet Widodo, Maris Setyo Nugroho, Mohamad Tafrikan, and Zhengguo Gao. “The Ultrasonic Pulse Velocity and Lagrangian Approaches to Predict the Effective Thickness and Homogeneity of the Sandwich Panel”. UKaRsT 6, no. 2 (November 30, 2022): 246–260. Accessed November 29, 2024. https://ojs.unik-kediri.ac.id/index.php/ukarst/article/view/3545.