graduate school ramkhamhaeng university(activity theory) robert havighurst (1963) (active lifestyle)...
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- Graduate School Ramkhamhaeng University(activity theory) Robert Havighurst (1963) (active lifestyle) (role theory) 2546; 2536; Atchley, 1994; Landis, 1971) (disengagement theory) "growing
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Post on 06-Jul-2020
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