. . "Chŏng-su"@en . . "Chŏng-su Hong"@en . "洪貞銖" . "Hong Chong-su" . . "洪貞銖" . "洪楨修" . "Chong Su Hong" . "Chong" . "홍정수" . "Soyŏn" . "Hong Chong-su" . "Chong-su" . "洪 貞銖" . "Hong"@en . "홍 정수" . "홍 정수" . "洪貞銖" . "홍 정수" . "洪楨修" . "홍종수" . "1926" . "홍종수" . . "Chong-su Hong" . "홍 정수" . "홍정수" . "Su" .