PUSPITASARI, S. Sampul Belakang 30 2 2012. Jurnal Penelitian Karet, [S. l.], v. 30, n. 2, p. i-iv, 2012. DOI: 10.22302/ppk.jpk.v30i2.212. Disponível em: https://ejournal.puslitkaret.co.id/index.php/jpk/article/view/212. Acesso em: 22 nov. 2024.