Idawati Situmorang, Rajainal Saragih, Yumitra Falenthine Br Ginting. The Effectiveness of English Learning Through Online Learning During the Covid-19 Pandemic. IJERE [Internet]. 2020 Jun. 30 [cited 2024 Jul. 3];:32-8. Available from: https://ejournal.ipinternasional.com/index.php/ijere/article/view/158