Raksaphort, Supattra, Kawinpob Yenyaem, Sutatib Gluntang, Worrayut Champati, Pansiri Tammakeson, Suputra Ngogngam, and Sunisa Suwancharoen. 2021. “Parameters Investigation of Hair Dyeing Using Natural Extract from Henna Leaves, Sappan Heartwood, Butterfly Pea Flowers, Mangosteen Husk and Red Cabbage”. Rajamangala University of Technology Srivijaya Research Journal 13 (3):790-803. https://li01.tci-thaijo.org/index.php/rmutsvrj/article/view/245260.