Tervakari, Anne-Maritta, Kirsi Silius, Teemo Tebest, Jarno Marttila, Meri Kailanto, and Jukka Huhtamäki. “Peer Learning in Social Media Enhanced Learning Environment”. International Journal of Emerging Technologies in Learning (iJET) 7, no. 3 (September 10, 2012): pp. 35–42. Accessed June 28, 2022. https://online-journals.org/index.php/i-jet/article/view/2173.