Assalammualaikum warahmatullahi wabarakatuhu Ecology Webinar with one Lecturer from the Department of Biology, FMIPA UNP, namely Mr. Rijal Satria, Ph.D., This activity was held by Tadris Biology UIN North Sumatra and this activity can be followed via the link: Join Zoom Meeting https://zoom.us/j/98495516532?pwd=TUNKM3UwZXh3WWVvUmJUUjVKU3lqdz09