P. BHARDWAJ, C. VARSHNEYA, and V. SHARMA, “Nematicidal activity of methanolic flower extract of Tagetes patula against Haemonchus contortus worms”, Indian J of Anim Sci, vol. 85, no. 3, pp. 241–243, Mar. 2015, doi: 10.56093/ijans.v85i3.47269.