Drigas, A., Papoutsi, C. and Skianis, C. (2021) “Metacognitive and Metaemotional Training Strategies through the Nine-layer Pyramid Model of Emotional Intelligence”, International Journal of Recent Contributions from Engineering, Science & IT (iJES), 9(4), pp. pp. 58–76. doi: 10.3991/ijes.v9i4.26189.