RUGKHLA, A. Effect of Pursley (Richardia scabra L.) on Growth, Nitrogen Uptake an dYield Loss in roselle (Hibsicus sabdariffa var. altissima) . Thai Agricultural Research Journal, [S. l.], v. 9, n. 3, p. 162–166, 1991. Disponível em: https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/242391. Acesso em: 1 oct. 2026.