The non-regular program is administered programs in particular. At this time courses that are included in non-regular program is the Teacher Education Program Equalization D2 SD (PGSD) and S1-PGSD Program; the other courses included in the regular program. Academic leave is one of convenience given to students who for any reason cannot complete the lecture. Students can take academic leave for four consecutive registration periods without having to report to UT. Before time runs out of academic leave, students must immediately register the course so student status is not lost. Learning activities can be conducted at anywhere and any time. Printed material (known as module) serves as the main learning medium, supplemented by non-printed materials such as recorded learning materials (audio video cassettes, CD, radio and TV), as well as computerbased learning materials (CAI and Internet based). To provide optimal education services to students who are spread all over the country and abroad, UT collaborates with agencies such as the PT Pos Indonesia, Bank Rakyat Indonesia (BRI), Televisi Republik Indonesia (TVRI), Radio Republik Indonesia (RRI), Local Government Radio Broadcast, Radio Broadcast Private Commerce, Regional Office/Department of Education, Education Attache Embassy of Indonesia, National Library, and local libraries. Open University is working with agencies that want to improve the quality of its employees: government agencies, state enterprises, or private. They can follow the program in the UT or order a new study program to suit the needs of the office. UT has been to get the trust of the government to improve the quality of primary school teachers through the Equalization Program D2 Elementary School Teacher. In addition, UT has won the trust to improve the quality of human resources from the military, Bank Rakyat Indonesia (BRI), PT Bank BNI (Bank Negara Indonesia), Garuda Indonesia, Merpati Nusantara, Ministry of Agriculture, Setwapres, and several other agencies. The learning support services consist of academic and administrative services. Academic Services The academic services are provided through tutorials. There are two kinds of tutorials: face-to-face and at a distance via radio, television, and internet. Furthermore, practical works are also provided for courses that need practicum. Both tutorials and practical works are facilitated by qualified tutors, instructors, and or supervisors, who come from various well-known public and private universities as well as from UT itself. For certain courses, resource persons are sometimes invited from business, industry and other relevant sectors.