Improving Environmental Literacy on the Dangers of Microplastics and Reducing Single-Use Plastics through an Environmentally Friendly School Program at Al-Razi Sinar Harapan Vocational High School Medan. JURNAL PENGMAS KESTRA (JPK), [S. l.], v. 6, n. 1, p. 1–7, 2026. DOI: 10.35451/txw85729. Disponível em: https://ejournal.medistra.ac.id/index.php/JPK/article/view/3660. Acesso em: 6 jul. 2026.