by 구희찬, 황인걸
Published in 지질학회지, 53(2) (01.04.2017)

by 구희찬, 김정환, 황인걸
Published in 지질학회지, 54(1) (01.02.2018)

by 구희찬(Hui-Chan Gu), 황인걸(In Gul Hwang)
Published in 지질학회지 (01.04.2017)

by 김정환, 정종옥, 김용식, 구희찬, 손영관
Published in 지질학회지, 52(6) (01.12.2016)

by 구희찬(Hui-Chan Gu ), 김정환(Jeong-Hwan Gim), 황인걸(In Gul Hwang)
Published in 지질학회지 (2018)

by 김정환(Jeong-Hwan Gim), 정종옥(Jong-Ok Jeong), 김용식(Yong Sik Gihm), 구희찬(Hui-Chan Gu), 손영관(Young Kwan Sohn)
Published in 지질학회지 (01.12.2016)

by 구희찬, 김효진, 주천기
Published in Daihan angwa haghoi jabji (01.03.2005)

by 구희찬, 이영춘, 김현승
Published in Daihan angwa haghoi jabji (01.12.2004)

by 백지선, 구희찬, 이영춘, 김현승
Published in Daihan angwa haghoi jabji (01.06.2006)

by 구희찬, Hee Chan Ku, 이영춘, Young Chun Lee, 김현승, Hyun Seung Kim
Published in Daihan angwa haghoi jabji (15.12.2004)

by 구희찬, Hee Chan Ku, 박영근, Young Gun Park, 이세엽, Se Yup Lee, 이영춘, Young Chun Lee
Published in Daihan angwa haghoi jabji (15.08.2010)

by 구희찬, Hee Chan Ku, 이세엽, Se Youp Lee, 이영춘, Young Chun Lee
Published in Daihan angwa haghoi jabji (31.07.2005)

by 백지선, Ji Sun Paik, 구희찬, Hee Chan Ku, 이영춘, Young Chun Lee, 김현승, Hyun Seung Kim
Published in Daihan angwa haghoi jabji (30.06.2006)

by 구희찬, Hee Chan Ku, 김효진, Hyo Jin Kim, 주천기, Choun Ki Joo
Published in Daihan angwa haghoi jabji (31.03.2005)

by 구희찬, Hee Chan Ku, 조소현, So Hyun Cho, 김효진, Hyo Jin Kim, 김진형, Jin Hyung Kim, 주천기, Choun Ki Joo
Published in Daihan angwa haghoi jabji (30.04.2005)