Paktaranart Ruankaewa. 2015. Case study : occupational stress and sleep quality related factors among machinery service offshore workers. , Mahidol University;
Paktaranart Ruankaewa. (2015) Case study : occupational stress and sleep quality related factors among machinery service offshore workers . Mahidol University/Nakhon Pathom.
Paktaranart Ruankaewa. Case study : occupational stress and sleep quality related factors among machinery service offshore workers. . Nakhon Pathom:Mahidol University, 2015.
Paktaranart Ruankaewa. (2015) Case study : occupational stress and sleep quality related factors among machinery service offshore workers . Mahidol University/Nakhon Pathom.