ֲ Ͳ Ͳ
"ȯ ˲Ͳ Ͳ Ѳ"
Ͳ

Ͳ Բ

141 ", " ( " ")

English

1954

, .

(Bachelor of Science) , ˳⳿, ’, -.

, ’, .

2014 . ϳ .. , (Doctor of Philosophy), , .