China Biographical Database Project (CBDB) (Harvard) https://projects.iq.harvard.edu/cbdb/social-networks

— CBDB structure: https://projects.iq.harvard.edu/cbdb/structure-cbdb

— CBDB supporting docs: https://projects.iq.harvard.edu/cbdb/supporting-documents

— CBDB Codebook: https://docs.google.com/spreadsheets/d/1KNX4FPVbFII0HP2FEiQooGpdONobGM9QVdEIQvGz2h8/edit#gid=1668212716

— CBDB user guide: https://projects.iq.harvard.edu/files/cbdb/files/users_guide_20200927.pdf

Pajek User guide: http://mrvar.fdv.uni-lj.si/pajek/be3.htm

SQL databases and R: https://datacarpentry.org/R-ecology-lesson/05-r-and-databases.html

MYSQL and R: https://programminghistorian.org/en/lessons/getting-started-with-mysql-using-r