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Vimolpun Nitipong. (2002) Elderly participation in self-help group development . Mahidol University/Bangkok.
Vimolpun Nitipong. Elderly participation in self-help group development. . Bangkok:Mahidol University, 2002.
Vimolpun Nitipong. (2002) Elderly participation in self-help group development . Mahidol University/Bangkok.