+Ӑ&48Ӕ&*,$+¬1Ӝ, 75ѬӠ1*ĈҤ,+Ӑ&.+2$+Ӑ&;+Ӝ,9¬ - 75ѬѪ1*1+Ұ79,1+ +26ẩ70,48$1+*, 7ầ11é09ơ7ầ1+ẩ19,77 &$&ẩ&/ơ1*75ầ1079ơ,$ /81 917+&6 &KX\rQQJjQK1J{QQJK +j1L 2015 TIEU LUAN MOI download : skknchat@gmail.com ĈҤ,+Ӑ&48Ӕ&*,$+¬1Ӝ, 75ѬӠ1*ĈҤ,+Ӑ&.+2$+Ӑ&;+Ӝ,9¬ - 75ѬѪ1*1+Ұ79,1+ +Ҧ26È70Ӕ,48$1+ӊ*,Ӳ TÊN NÔM VÀ TÊN HÈ19,ӊ77ѬѪ1*Ӭ1* &$&ẩ&/ơ1*75ầ1079ơ,$ /XQYQ7KFVFKX\rQQJjQK1J 0mV 1JLKQJGQNKRDKF*67 +j1L 2015 TIEU LUAN MOI download : skknchat@gmail.com /Ӡ,&$0Ĉ2$1 7{L[LQFDPÿRDQÿk\OjF {QJWUuQKQJKLrQFӭXFӫDU &iFVӕOLӋXNӃWTXҧWURQJOXұQYăQ EӕWURQJEҩWNǤF{QJWUuQKQjRNKiF 7iFJLҧ 7UѭѫQJ1KұW9LQK TIEU LUAN MOI download : skknchat@gmail.com /Ӡ,&Ҧ0Ѫ1 /XұQYăQQj\ÿѭӧFWKӵFKLӁQGѭӟLVӵ 767UҫQ7U '}L(P[LQJӱLWӟLWKҫ\OӡLFҧPѫQVkX 7URQJTXiWUuQKWKӵFKLӋQOXұQYăQ ÿӝQJYLrQFӫDFiFWKҫ\F{JLiRFiFEҥQ ÿӏDEjQNKҧRViW(P[LQFKkQWKjQKFҧP +j1͡LQJj\WKiQJ +ӑFYLrQ 7UѭѫQJ1KұW9LQK TIEU LUAN MOI download : skknchat@gmail.com 0Ө&/Ө& PHҪN MӢĈҪU Lý chӑ Qÿ Ӆtài .6 Mө FÿtFKYjQKL Ӌ m vөnghiên cӭu Ĉ ӕ LWѭ ӧng phҥ m vi nghiên cӭu 3KѭѫQJSKiS thӵc hiӋ n éQJKƭDF ӫDÿ Ӆtài Bӕcө c cӫDOXұQYăQ 3+Ҫ11Ӝ,'81* 11 &+ѬѪ1* : &Ѫ6Ӣ/é7+8