Atstāja, Dzintra. “VIDES AIZSARDZĪBAS TEORIJA, PRAKSE UN PIEREDZE STUDIJU PROCESĀ THEORY, PRACTICE AND EXPERIENCE OF ENVIRONMENT PROTECTION IN STUDY PROCESS”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 2 (August 3, 2015): 127–133. Accessed November 23, 2024. https://journals.ru.lv/index.php/ETR/article/view/1011.