TY - BOOK AU - Sidek Ab. Aziz, TI - Pengenalan Teknologi Ultrasonik SN - 9789834915308 PY - 2021/// CY - Kuala Lumpur PB - Dewan Bahasa dan Pustaka KW - Ultrasonics KW - Government publications KW - Malaysia KW - Ultrasonic waves N1 - Includes index; Bibliography: pages 85-86 ER -