Ministry of Housing and Urban-Rural Development of the People's Republic of China(MOHURD) (2019). 中国城市建设统计年鉴2018 [China Urban Construction Statistical Yearbook 2018] (in Chinese). Beijing: China Statistic Publishing House. Archived from the original on July 18, 2020. Retrieved November 30, 2021.
Ministry of Housing and Urban-Rural Development of the People's Republic of China(MOHURD) (2019). 中国城市建设统计年鉴2018 [China Urban Construction Statistical Yearbook 2018] (in Chinese). Beijing: China Statistic Publishing House. Archived from the original on July 18, 2020. Retrieved November 30, 2021.