Hailemichael, G., Tilahun, D., & Tsegaw, T. (2009). Physical Parameters, Oleoresin and Volatile Oil Contents of Five Pepper (Pepper nigrum L.) Cultivars as Influenced by Maturity. East African Journal of Sciences, 3(2), 189–192. https://doi.org/10.20372/eajs.v3i2.87