Lou X, An H, Guo F. A Comparison of the Characteristics of Informal Economy between Developing and Developed Countries and the Experience and Reference of China: A Case Study of Malaysia and Singapore. JEFAS [Internet]. 2024 Aug. 6 [cited 2026 Apr. 20];6(4):20-3. Available from: https://al-kindipublishers.org/index.php/jefas/article/view/7549