M. Menamo and Z. Wolde, “Effect of Cyanobacteria Application as Biofertilizer on Growth, Yield and Yield Components of Romaine Lettuce (Lactuca sativaL.) on Soils of Ethiopia”, ASRJETS-Journal, vol. 4, no. 1, pp. 50–58, Jun. 2013, Accessed: Sep. 15, 2025. [Online]. Available: https://asrjetsjournal.org/American_Scientific_Journal/article/view/752