Theory of countertrade; a Look into Advantages of different types of Countertrade. PAKISTAN JOURNAL OF LAW, ANALYSIS AND WISDOM, [S. l.], v. 1, n. 01, p. 36–64, 2022. Disponível em: https://pjlaw.com.pk/index.php/Journal/article/view/3. Acesso em: 16 oct. 2025.