Lalitha, S., & Santhakumari, R. (2021). Improving and effect of bio fertilizer on enhancement of the growth and bio chemical characteristic of photosynthesis on the Blackgram (Vigna mungo L.). International Journal of Agricultural Technology, 17(1), 155–168. retrieved from https://li04.tci-thaijo.org/index.php/IJAT/article/view/5917