Periotto, T. The Program of Excellence in Basic Education and Collaborative Practices for Sustainable Development. Свищов: Академично издателство "Ценов", 93-98,.
Periotto, T. The Program of Excellence in Basic Education and Collaborative Practices for Sustainable Development. Свищов: Академично издателство "Ценов", 93-98,.
Periotto, T. The Program of Excellence in Basic Education and Collaborative Practices for Sustainable Development, Свищов: Академично издателство "Ценов" 93-98,.
Periotto, T. The Program of Excellence in Basic Education and Collaborative Practices for Sustainable Development. Глобални цели за устойчиво развитие : осъзнаване, концепции, метрики и обучение : [Монография] (с. 93-98). Свищов: Академично издателство "Ценов".
Periotto T. The Program of Excellence in Basic Education and Collaborative Practices for Sustainable Development. Свищов: Академично издателство "Ценов"; p. 93-98.