Nugraha, A.W. et al. 2020. Free Ammonia Deliming: Effect of Tartaric Acid Addition as a Deliming Agent on The Quality of Wet Blue and Wastewater. Tropical Animal Science Journal. 43, 2 (Jun. 2020), 176–182. DOI:https://doi.org/10.5398/tasj.2020.43.2.176.