Westhuizen, C. V. der . “Video Annotation for Effective Feedback and Reflection on Micro-Lessons in a Collaborative Blended Learning Environment to Promote Self-Directed Learning Skills”. International Journal of Learning, Teaching and Educational Research, vol. 11, no. 3, May 2015, pp. 88-108, https://www.ijlter.myres.net/index.php/ijlter/article/view/1077.