1. Ha K., Koh D.-C., Yum B.-W., Lee K.-K. // Записки Горного института. 2007. Том 170№ 2. C. 18-21.
1. Ha K., Koh D.-C., Yum B.-W., Lee K.-K. Aquifer diffusivity determination from aquifer responses to the river stage fluctuations in a Mangyeong-river floodplain // Journal of Mining Institute. 2007. Том 170№ 2. C. 18-21.