SpringerLink (Online service), Kroop, S., Mikroyannidis, A., & Wolpers, M. (2015). Responsive Open Learning Environments: Outcomes of Research from the ROLE Project. Springer International Publishing : Imprint: Springer. https://doi.org/10.1007/978-3-319-02399-1
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)SpringerLink (Online service), Sylvana Kroop, Alexander Mikroyannidis, و Martin Wolpers. Responsive Open Learning Environments: Outcomes of Research from the ROLE Project. Cham: Springer International Publishing : Imprint: Springer, 2015. https://doi.org/10.1007/978-3-319-02399-1.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)SpringerLink (Online service), et al. Responsive Open Learning Environments: Outcomes of Research from the ROLE Project. Springer International Publishing : Imprint: Springer, 2015. https://doi.org/10.1007/978-3-319-02399-1.