[1] 郭睿. 高等师范院校《土壤地理学》课堂教学创新改革研究[J]. 科教导刊-电子版(下旬), 2022, (9): 138-140.
[2] Rui Guo and Ye Jiang. Effects of Precipitation on Air Pollution in Spring and Summer in Lanzhou. 2020 5th International Conference on Advances in Energy and Environment Research (ICAEER 2020). 2020, 194.