Nur Nabilah Mohd Yusof, Nurhayati Mohd Nur, Eida Nadirah Roslin, Haslinawati Besar Sa’aid , Mulia Minhat. A Conceptual Framework to Determine the Effects of Work-Related Musculoskeletal Disorders (WMSDs) on Work Productivity of Aviation Maintenance Workers. IJAST 2020, 29, 1753 - 1762.