Course 1on1

Course 1on1 is a channel that represents some Udemy courses and gives brief preview about those courses. 
Current courses:
Croatian Course- https://www.udemy.com/course/croatian-language/?referralCode=04F1BC2DFE068FDD24A0
Biology course- https://www.udemy.com/course/biology-1-first-year-of-high-school-college/?referralCode=48B3FEA4A6CCF0301A2A