The best marketing plan of photographing for money deduced by extensible mind mappingBifeng Guo, Rui Fan, Chong-wen Huang, Fuyu Ma, Zihao Li, Qiubin Liu, Penghui Liu and Weitao HeITM Web Conf., 17 (2018) 03003DOI: https://doi.org/10.1051/itmconf/20181703003