B B Vashishtha, S S Meena, R S Mehta,. 2009. “Influence of Sheep Manure, Vermicompost and Azotobactor Sp. On Growth and Yield of Ajowan (Trachyspermum Ammi Sprague)”. Journal of Spices and Aromatic Crops 18 (2):100-103. https://updatepublishing.com/journal/index.php/josac/article/view/4944.