Plernta Ethisan และ Ratana Somrongthong. (2014) EFFECTIVENESS OF GROUP-MEDIATED LIFE STYLE PHYSICAL ACTIVITY (GLPA)PROGRAM FOR PHYSICAL ACTIVITIES AMONG OLDER PERSONS IN PHRA NAKHON SI AYUTTHAYA DISTRICT PHRA NAKHON SI AYUTTHAYA PROVINCE THAILAND. Chulalongkorn University:ม.ป.ท.Plernta Ethisan และ Ratana Somrongthong. 2014. EFFECTIVENESS OF GROUP-MEDIATED LIFE STYLE PHYSICAL ACTIVITY (GLPA)PROGRAM FOR PHYSICAL ACTIVITIES AMONG OLDER PERSONS IN PHRA NAKHON SI AYUTTHAYA DISTRICT PHRA NAKHON SI AYUTTHAYA PROVINCE THAILAND. ม.ป.ท.:Chulalongkorn University;Plernta Ethisan และ Ratana Somrongthong. EFFECTIVENESS OF GROUP-MEDIATED LIFE STYLE PHYSICAL ACTIVITY (GLPA)PROGRAM FOR PHYSICAL ACTIVITIES AMONG OLDER PERSONS IN PHRA NAKHON SI AYUTTHAYA DISTRICT PHRA NAKHON SI AYUTTHAYA PROVINCE THAILAND. ม.ป.ท.:Chulalongkorn University, 2014. Print.