Janjira Muenrew และ Ratchuporn Suksathan; Ratchadawan Puangpradab; Apinya Rachkeeree; Kuttiga Kantadoung. (2021) Effects of Different Nitrogen Forms on Growth, Phenolic Content, and Antioxidant Activity in Hedychium speciosum and H. coronarium. <i>Naresuan University Journal: Science and Technology</i>, <i>29</i>(2), 33-42.Janjira Muenrew และ Ratchuporn Suksathan; Ratchadawan Puangpradab; Apinya Rachkeeree; Kuttiga Kantadoung. "Effects of Different Nitrogen Forms on Growth, Phenolic Content, and Antioxidant Activity in Hedychium speciosum and H. coronarium". Naresuan University Journal: Science and Technology 29 (2021):33-42.Janjira Muenrew และ Ratchuporn Suksathan; Ratchadawan Puangpradab; Apinya Rachkeeree; Kuttiga Kantadoung. Effects of Different Nitrogen Forms on Growth, Phenolic Content, and Antioxidant Activity in Hedychium speciosum and H. coronarium. Naresuan University Graduate School:ม.ป.ท. 2021.