Boonsong Ekpong, & Sutevee Sukprakarn. (2006). Harvest Stages and Umbel Order Contribution on Eryngo (Eryngium foetidum L.) Seed Yield and Quality. Agriculture and Natural Resources, 40(2), 273–279. retrieved from https://li01.tci-thaijo.org/index.php/anres/article/view/243600