SURTINAH, Surtinah; SUSI, Neng; LESTARI, Sri Utami. OPTIMASI LAHAN DENGAN SISTEM TUMPANG SARI JAGUNG MANIS (Zea mays saccharata, Sturt) DAN KANGKUNG SUTRA (Ipomea reptans) DI PEKANBARU. Jurnal Ilmiah Pertanian, [S. l.], v. 12, n. 2, p. 62–72, 2018. DOI: 10.31849/jip.v12i2.987. Disponível em: https://journal.unilak.ac.id/index.php/jip/article/view/987. Acesso em: 15 may. 2026.