67 (6) Primary responsibility for learning aids and instructional materials. The Regional Government shall have the primary responsibility to provide learning aids and instructional materials to the schools in the autonomous region in addition to those already prescribed by the central government or national government. (7) Responsibility for selection, recruitment, appointment, promotion, and civil service protection of teachers and nonteaching personnel. (a) The selection, recruitment, appointment, and promotion of teaching and non-teaching personnel of the regional educational subsystem shall be the responsibility of the Regional Government. The teaching and non-teaching personnel of the regional educational subsystem who have appropriate civil service eligibility may not be replaced, removed, or dismissed without just cause. (b) The Regional Government may impose its regionallydefined standards for the employment of teaching and nonteaching personnel in its school system which, however, shall not be lower than the standards of the Department of Education, Culture and Sports. (c) In the selection, recruitment, appointment, and promotion of elementary, secondary, and tertiary education teaching and non-teaching personnel, the minimum requirements and standards prescribed by the Department of Education, Culture and Sports, the Commission on Higher Education, and the Technical Education and Skills Development Authority shall be observed by the regional educational subsystem. (8) Preservation of culture, mores, customs, and traditions. The culture, mores, customs, and traditions of the Muslim people and those of the Christians and indigenous people, shall be preserved, respected, enhanced, and developed. (9) Schools to preserve, enhance, and develop cultures, mores, customs, and traditions. The regular public and Madaris schools in the autonomous region shall be the primary vehicles for the preservation, enhancement, and development of the said cultures, mores, customs, and traditions.