How to work legally as an international student in the United States | Salaries for working as an international student in the United States

Many students choose to work while studying to earn some living expenses. So what are the conditions for working while studying in the United States? Are there any restrictions? The following is about how to work legally as an international student in the United States, the salary of working while studying in the United States, how to work while studying in the United States, working in the United States to study in Japan, working in Southeast Asia...