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  1. Best Weed Killers. Best Reviews. https://bestreviews.com/lawn-garden/fertilizers/all-time-weed-killers

  2. Bullock, Fitzroy D. Lawn Weed Management. Tennessee Country University, Cooperative Extension Program.

  3. Shaffer, Gared. Organic Herbicides. South Dakota State University Extension.

  4. Smith-Fiola, Deborah, and Gill, Stanton. Vinegar: An Alternative to Glyphosate? University of Maryland Extension.

  5. Lanini, W. Thomas. Organic Herbicides—Do They Piece of work? University of California, Division of Agriculture and Natural Resources, UC Nursery and Floriculture Alliance.