Bulis, Aldis, and Oskars Onževs. “MEASUREMENT OF SUSTAINABLE DEVELOPMENT IN LATVIA”. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 13, 2023): 29–32. Accessed April 14, 2025. https://journals.rta.lv/index.php/ETR/article/view/7179.