PUSPITASARI, S. Sampul Belakang 29 2 2011. Jurnal Penelitian Karet, [S. l.], v. 29, n. 2, p. i-iv, 2021. DOI: 10.22302/ppk.jpk.v29i2.240. Disponível em: https://ejournal.puslitkaret.co.id/index.php/jpk/article/view/240. Acesso em: 22 dec. 2024.