Zafar A, Akhtar A, Noreen A. Impact of Heavy Metals (Zinc and Copper) on the Survival Rate and Reproductive Behaviour of Earthworm (Eisenia Fetida). IJBR [Internet]. 2025 May 17 [cited 2026 May 31];3(5):420-5. Available from: https://ijbr.com.pk/IJBR/article/view/1358