FANI, Riyanda. Model Sistem Permintaan Bahan Pangan Rumah Tangga pada Masa Pandemi Covid-19. Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika, [S. l.], v. 7, n. 1, p. 172–179, 2024. DOI: 10.30605/proximal.v7i1.3338. Disponível em: https://www.e-journal.my.id/proximal/article/view/3338. Acesso em: 8 jul. 2025.