Arhipova, O. and Kokina, I. 2018. SCIENTIFICALLY GROUNDED CONCEPTIONS, THEORIES AND SCHOOL PRINCIPALS PROFESSIONAL DEVELOPMENT VARIATIVE MODULES. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference. 6, (May 2018), 30–41. DOI:https://doi.org/10.17770/sie2018vol1.3320.