Make A Payment :: Required Student Document (Student Identification Number) per Country
Country ID	Country Name	Document Label	Format L - LETTER N - Number	Validation	Reg. Expression
BR	Brazil	CPF	NNN.NNN.NNN-NN	11 digit number	^(\d{3}\.\d{3}\.\d{3}-\d{2})$
CN	China	Citizen ID number (公民身份号码)	-	18 digits, and the last digit is a number or letter X	^([1-9]\d{5}(19|20)\d{2}((0[1-9])|(1[0-2]))(([0-2][1-9])|10|20|30|31)\d{3}[0-9Xx])$