The Implementing Regulation of the Labor System addresses the Work Contract between the institution and the Employee, detailing aspects such as the duration of work, probation period, working hours, and salary. The contract commences from the date of starting work and concludes after a specified period with the possibility of renewal. The contract specifies the Employee's rights regarding annual leave, which shall not be less than 21 days for service of less than five years and 30 days for more....