Beyrami S, Salehi Sahlabadi A, Talebolhagh S, Ramezanifar S, Moutab Sahihazar Z. Evaluation of Compressive and Shear Forces Exerted on the Lower Back in Manual Load Handling Tasks among Young Workers of Selected Block Maker Using 3DSSPP. Int J Occup Hyg. 2021;13(1):49-63.