E, Amemor, et al. “Efficacy of Levamisole, Piperazine and Their Combination in the Control of Gastrointestinal Worms in Guinea Fowl: Https: dx.doi.org 10.4314 njpar.V42i2.18”. Nigerian Journal of Parasitology, vol. 42, no. 2, July 2023, pp. 326-31, https://njpar.com.ng/index.php/home/article/view/192.