PUSPITASARI, S. Sampul Depan 29 1 2011. Jurnal Penelitian Karet, [S. l.], v. 29, n. 1, p. i-iii, 2011. DOI: 10.22302/ppk.jpk.v29i1.194. Disponível em: https://ejournal.puslitkaret.co.id/index.php/jpk/article/view/194. Acesso em: 22 jul. 2024.