Ahmed, O. H., Shamsuddin, R., Nik Ab. Majid, N. M., & Jalloh, M. B. (2012). Effect of N, P and K humates on dry matter of Zea mays and soil pH, exchangeable ammonium and available nitrate. Academic Journals.
Chicago Style (17th ed.) CitationAhmed, Osumanu Haruna, Rosliza Shamsuddin, Nik Muhamad Nik Ab. Majid, and Mohamadu Boyie Jalloh. Effect of N, P and K Humates on Dry Matter of Zea Mays and Soil PH, Exchangeable Ammonium and Available Nitrate. Academic Journals, 2012.
MLA (9th ed.) CitationAhmed, Osumanu Haruna, et al. Effect of N, P and K Humates on Dry Matter of Zea Mays and Soil PH, Exchangeable Ammonium and Available Nitrate. Academic Journals, 2012.
Warning: These citations may not always be 100% accurate.