V. Phalaharn, N. Pakdee, P. Pongnaratorn, J. Prathumtet, and R. Poowanna, “Chemical composition analysis with TLC, HPLC and antioxidant activity from Justicia gendarussa Burm.f. leaf extract”, KSU-Journal Sci Tech & Innov., vol. 4, no. 2, pp. 82–97, Oct. 2025.