NON-DESTRUCTIVE ULTRASONIC TESTING METHOD FOR DETERMINING BENDING STRENGTH PROPERTIES OF GMELINA WOOD (GMELINA ARBOREA). JTFS [Internet]. 2022 Jul. 13 [cited 2025 Nov. 24];20(2):99-104. Available from: https://jtfs.frim.gov.my/jtfs/article/view/1100