1.
Yang Y, Phromphithakkul W. Factors Influencing Air Pollution Control of Beijing-Tianjin-Hebei Region in China. IJSASR [internet]. 2023 Mar. 2 [cited 2025 Jun. 25];3(2):15-28. available from: https://so07.tci-thaijo.org/index.php/IJSASR/article/view/2361