(1) Shine Bunnag, (2) Pataman Buranasin, (3) Supichaya Chaimueanvong, (4) Meesak Makbumroong, (5) Apinunthakan Pongsathabordee, (6) Tepparit Sihisarapisit, (7) Tree Bunpradphai, (8) Phawit Natapintu
of live. At present, a lot of 60-year-old persons are healthy and intelligent to make contribution to many useful activities and have longer live expectancy. With larger amount of pensions to be