Calista Nawangsari E. Covid-19 Pandemic As An Excuse Of Non-Performance Of Contractual Obligations From Transnational Law Perspective. Jurnal Sosains [Internet]. 2022Mar.15 [cited 2024Nov.23];2(3):404-9. Available from: https://sosains.greenvest.co.id/index.php/sosains/article/view/367