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han river watershed

Han River Basin

By Han River Basin Joint Survey Team.

Han River Basin, Republic of Korea

By United States. Bureau of Reclamation.

Environmental risk assessment of pharmaceuticals

By Pak, Chŏng-im (Environmental researcher)

Chogang ŭi norae

By Si-han Ch'oe

Han'gang hagu sŭpchi poho chisyŏk monoit'ŏring kyŏlgwa pogosŏ

By Korea (South). Han'gang Yuyŏk Hwan'gyŏngch'ŏng

Tosi hachʻŏn sujil kwalli pangan ŭl wihan yŏnʼgu

By