PUSPITASARI, S. Sampul Depan 31 2 2013. Jurnal Penelitian Karet, [S. l.], v. 31, n. 2, p. i-xiv, 2013. DOI: 10.22302/ppk.jpk.v31i2.202. Disponível em: https://ejournal.puslitkaret.co.id/index.php/jpk/article/view/202. Acesso em: 22 dec. 2024.