WASET
    Pei-Ti Hsu and  I-Ju Chen and  Jeu-Jung Chen and  Cheng-Fen Chang and  Shiu-Yan Yang,  Using the Transtheoretical Model to Investigate Stages of Change in Regular Volunteer Service among Seniors in Community.   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2015, vol. 97(1). 167 - 171
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/10000276.