Purbaningrum KA, Safitri PT. PENGEMBANGAN BAHAN AJAR LEMBAR AKTIVITAS TERSTRUKTUR PADA MATA KULIAH TRIGONOMETRI. SENATIK [Internet]. 2019Aug.20 [cited 2024May3];4:430-5. Available from: https://conference.upgris.ac.id/index.php/senatik/article/view/90