The focus of _____________ (exist/existing) literature is mainly on formal learning (Looi et al., 2016) in which virtual learning platforms are used on mobile devices (see for example Wang, Wu, & Wang, 2009; Liu et al., 2010).
The focus of _____________ (exist/existing) literature is mainly on formal learning (Looi et al., 2016) in which virtual learning platforms are used on mobile devices (see for example Wang, Wu, & Wang, 2009; Liu et al., 2010).
发布时间：2026-01-21 14:48:03
