PUSPITASARI, S. Sampul Belakang 34 2 2016. Jurnal Penelitian Karet, [S. l.], v. 34, n. 2, p. xix-xxiv, 2016. DOI: 10.22302/ppk.jpk.v34i2.340. Disponível em: https://ejournal.puslitkaret.co.id/index.php/jpk/article/view/340. Acesso em: 22 jul. 2024.