Problems: This research is motivated by the limited teaching and learning activities of Basic Tarung Derajat in the Department of Sports Coaching. because the lecture hours are only 2 credits limiting student learning activities on campus. Purpose: This research aims to produce a learning product for students as well as in the form of materials / textbooks and an android application t... https://goodvibesbadhabiters.shop/product-category/electrosex-accessories/