Piyaporn Nurarak และ Yasushi Kiyoki;Petchporn Chawakitcharoen;Yasuhiro Hayashi. (2021) A Coral-Color Analysis System for Observing Environmental Situation and Change with K-means Clustering and Semantic Classification. <i>Thai Environmental Engineering Journal (TEEJ)</i>, <i>35</i>(1), 63-73.Piyaporn Nurarak และ Yasushi Kiyoki;Petchporn Chawakitcharoen;Yasuhiro Hayashi. "A Coral-Color Analysis System for Observing Environmental Situation and Change with K-means Clustering and Semantic Classification". Thai Environmental Engineering Journal (TEEJ) 35 (2021):63-73.Piyaporn Nurarak และ Yasushi Kiyoki;Petchporn Chawakitcharoen;Yasuhiro Hayashi. A Coral-Color Analysis System for Observing Environmental Situation and Change with K-means Clustering and Semantic Classification. Environmental Engineering Association of Thailand:ม.ป.ท. 2021.