Autor:	정우식¹ woosik_jung@cha.ac.kr, 강형곤¹ hgkang@cha.ac.kr, 한세미² smm32@cha.ac.kr, 김은혜³ eunhyekim@cha.ac.kr
Zdroj:	Journal of Digital Convergence. 2021, Vol. 19 Issue 6, p419-427. 9p.
Databáze:	Business Source Ultimate
Externí odkaz:	Zobrazit plný text záznamu