Keadtidumrongkul, P., N. Chirarat, and S. Somran. “Determination of LD50 of Ethidium Bromide for Induction of Mutation in Marigolds”. Asian Health, Science and Technology Reports, vol. 26, no. 4, Nov. 2018, pp. 80-88, doi:10.14456/nujst.2018.24.