MASSOUD HEKMAT, Y. A.; HUSSEIN, H. A. A.; EL-GAMAL SEHAM, M. A. Effect of sowing dates and NPK levels on active substances in seeds of isabgol plants (Plantago ovata Forsk, L.). International Journal of Horticultural Science, [S. l.], v. 8, n. 2, p. 89–92., 2002. DOI: 10.31421/IJHS/8/2/343. Disponível em: https://ojs.lib.unideb.hu/IJHS/article/view/343. Acesso em: 29 sep. 2022.