Bahaa Khalifa. "The effect of the interaction between the level of intensity of visual cues in the video and the pattern of activity practice in the flipped learning environment in imparting skills for memorizing and retrieving digital information sources for students of the Libraries Division". مجلة البحوث في مجالات التربية النوعية, 8, 41, 2022, 1685-1760. doi: 10.21608/jedu.2022.137765.1664