The performance of school teachers be one of the important factors in improving the schools quality. Certified teachers in Ibtidaiyah Elementary School of Muhammadiyah Sudung Blora include planning and implementation of education quality development has been carried out effectively and efficiently. It is characterized by the realization of the development of the implementation of lear... https://www.divivoyance.com/product-category/silicone-glass-water-bottle/