Design of standard operating procedure (SOP) based at ergonomic working attitude through musculoskeletal disorders (Msd’s) complaintsWahyu Susihono, Ariesca, Suryanawati, Mirajiani and Gugun GunawanMATEC Web Conf., 218 (2018) 04019DOI: https://doi.org/10.1051/matecconf/201821804019