%0 Journal Article %T Maximum acceptable frequency of lift for combined manual material handling task in Malaysia %A Mirta Widia %A Nukman Yusoff %A Siti Zawiah Md. Dawal %J Archive of "PLoS ONE". %D 2019 %R 10.1371/journal.pone.0216918 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6541240/