by 이규일, Gyuil Lee
Published in Ch'eyuk kwahak yŏn'gu (31.03.2024)

by 이규일, Gyuil Lee
Published in Ch'eyuk kwahak yŏn'gu (30.06.2023)

by 이규일, Gyuil Lee
Published in Ch'eyuk kwahak yŏn'gu (31.12.2022)

by 이규일, Lee Gyuil
Published in Ch'eyuk kwahak yŏn'gu (30.06.2020)

by 이규일, Gyu-il Lee
Published in Ch'eyuk kwahak yŏn'gu (30.06.2019)

by 이규일, Gyu-il Lee
Published in Ch'eyuk kwahak yŏn'gu (31.12.2016)

by 양태양, Tae Yang Yang, 이규일, Gyu Il Lee
Published in Ch'eyuk kwahak yŏn'gu (30.06.2020)

by 이규일
Published in 교육녹색환경연구, 21(1) (01.03.2022)

by 이규일
Published in 교육녹색환경연구, 20(1) (01.03.2021)

by 장종훈, Jong-hun Jang, 이규일, Gyu-il Lee, 박재영, Jae-young Park
Published in Ch'eyuk kwahak yŏn'gu (30.09.2020)

by 이규일, Gyu Il Lee
Published in Ch'eyuk kwahak yŏn'gu (31.12.2014)

by 이규일, Gyu Il Lee
Published in Ch'eyuk kwahak yŏn'gu (30.03.2014)

by 김상진, Sang-jin Kim, 강형길, Hyung-kil Kang, 이규일, Gyu-il Lee
Published in Ch'eyuk kwahak yŏn'gu (31.03.2019)

by 이규일, Gyu Il Lee
Published in Ch'eyuk kwahak yŏn'gu (30.12.2012)

by 이규일, Gyu Il Lee
Published in Ch'eyuk kwahak yŏn'gu (30.09.2012)

by 강형길, Hyoung Kil Kang, 이규일, Gyu Il Lee
Published in Ch'eyuk kwahak yŏn'gu (31.12.2015)

by 이규일, Gyu Il Lee
Published in Ch'eyuk kwahak yŏn'gu (30.12.2011)

by 이규일, Lee, Kyoo-Il
Published in 교육녹색환경연구 (2022)

by 이규일, Lee, Kyoo-Il
Published in 교육녹색환경연구 (2021)

by 허태윤(Heo, Taeyun), 이규일(Lee, Gyuil)
Published in 교과교육학연구 (31.10.2021)