Abdullah, U.N.N. et al. 2026. A Conceptual Ergonomic Study on Upper Body Extremities of Female Operators in Composite Manual Hand Layup in the Aviation Industry . Malaysian Journal of Ergonomics (MJEr). 8, 1 (Jul. 2026), 63–74. DOI:https://doi.org/10.58915/mjer.v8.2026.3191.