EHTASHAM, Laraib. An Overview of Municipal Solid Waste Collection in Singapore, Mongolia, and Nepal. Indonesian Journal of Social and Environmental Issues (IJSEI), [S. l.], v. 3, n. 2, p. 122–127, 2022. DOI: 10.47540/ijsei.v3i2.455. Disponível em: https://ojs.literacyinstitute.org/index.php/ijsei/article/view/455. Acesso em: 12 jun. 2026.