WAHBA, HEND E.; MOTAWE, HEMAIA M.; IBRAHIM, ABBER Y. Effect of nitrogen fertilizers on productivity of Urtica pilulifera plant. Nusantara Bioscience, Surakarta, ID, v. 6, n. 1, 2016. DOI: 10.13057/nusbiosci/n060109. Disponível em: https://www.smujo.id/nb/article/view/893. Acesso em: 9 jun. 2026.