link ppt: https://prezi.com/view/QD1WVFTFxzRDh6jKmlkM/?referral_token=vxUO6RlnB3FN
Izin bu ini untuk makalahnya
link ppt: https://prezi.com/view/QD1WVFTFxzRDh6jKmlkM/?referral_token=vxUO6RlnB3FN