Chasani, A.R., Febrianti, M.W. and Rifqi, M.S. 2025. Phenetic Diversity and Relationships of Sea Lettuce (Ulva spp.) on the Southern Coast of Gunungkidul Yogyakarta Indonesia. International Journal of Marine Engineering Innovation and Research. 10, 1 (Jul. 2025), 121–127. DOI:https://doi.org/10.12962/j25481479.v10i1.4746.