Tugas Materi Presentasi

 https://www.canva.com/design/DAGRBTRx-yE/mVmVAFVEuWyET4PS07UMaQ/edit?utm_content=DAGRBTRx-yE&utm_campaign=designshare&utm_medium=link2&utm_source=sharebutton

slide ke 15-16