Jamil, Jeffry, Syed Yahya, Syed Yusainee, AND Zakaria, Rosnah. " Multi Display Scan in Detecting Weld Discontinuity of Thick Carbon Steel Plate using Ultrasonic Testing Phased Array (UTPA) with Comparison to Conventional Ultrasonic Testing (UT)" Scientific Research Journal [Online], Volume 17 Number 2 (28 August 2020)