The list of programs for the spring semester application is avaliable in the following link.
How to apply? Both for Turkish citizens and International Students : http://sbe.metu.edu.tr/how-apply
Required documents for application: http://sbe.metu.edu.tr/required-documents-application
Information about ODTU Proficiency Exam (METU- IYS Exam): http://oidb.metu.edu.tr/en/english-proficiency
All the information related to application processes are available on this website. Please read them carefully. Due to the volume of questions received, the staff will only be assisting you with the issues you cannot find on this website.