by 김예성(Ye-Sung Kim), 김광혁(Kwang Hyuk Kim)
Published in Korean Journal of child studies (2008)

by 김귀연, 김경연, Kim, Kwee Yeon, Kim, Kyong Yeon
Published in Korean Journal of child studies (2005)

by 박보경(Bo Kyung Park), 도현심(Hyun Sim Doh)
Published in Korean Journal of child studies (2002)

by 심희옥, Sim, Hee-Og
Published in Korean Journal of child studies (01.02.2010)

by 심희옥, Sim, Hee-og
Published in Korean Journal of child studies (01.06.2008)

by 심희옥, Sim, Hee-og
Published in Korean Journal of child studies (01.10.2005)

by 심희옥(Hee Og Sim)
Published in Korean Journal of child studies (2008)

by 심희옥(Hee Og Sim)
Published in Korean Journal of child studies (2005)

by 심희옥(Hee Og Sim)
Published in Korean Journal of child studies (2002)

by 김귀연, 김경연
Published in Korean Journal of child studies (01.12.2005)

by 신재선(Jae Seon Shin), 정문자(Moon Ja Chung)
Published in Korean Journal of child studies (2002)

by 김귀연(Kwee Yeon Kim), 김경연(Kyong Yeon Kim)
Published in Korean Journal of child studies (2005)