The purpose of this study is to produce a model of learning development that aims to increase student motivation motion for SMA Negeri 1 Boja . The method of research is the development of a model refers to the development of Brog and Gall : ( 1 ) to analyze the products that will be developed from the results of field observations and literature review . ( 2 ) developing the initial ... https://cosmeticssquadets.shop/product-category/multifunction-power-tools/