https://www.udemy.com/course/the-building-blocks-of-tech-in-finance/?couponCode=DA484AD5869A81FAEA36
https://www.udemy.com/course/microsoft-excel-basic-excel-formulas-and-functions/?couponCode=XLFRO1FF
https://www.udemy.com/course/chinese-big-tech-in-financial-services/?couponCode=89A11108886DD703D8C3