Anandakumar, Selvaraj, Sellappan Ranjith, Dhandapani Senthamilselvi, Gothandaraman Rajadurai, and Kaliyannan Sivakumar. “Foliar Application of Humic Acid on Growth and Biomass Improvement of Bok Choy and Red Leaf Lettuce”. Plant Science Today 11, no. 2 (March 26, 2024). Accessed July 3, 2024. https://horizonepublishing.com/journals/index.php/PST/article/view/2435.