In this article by John Dulosky and colleagues (2013) they review an incredible amount of research on various learning strategies (e.g., elaborative interrogation, self-explanation, keyword mnemonic, etc.). This is a truly amazing resource. See below for full citation.

Dunlosky, J., Rawson, K. A., Marsh, E. J., Nathan, M. J., & Willingham, D. T. (2013). Improving students’ learning with effective learning techniques promising directions from cognitive and educational psychology. Psychological Science in the Public Interest, 14(1), 4-58.