Do, van Hai, Thu Thuy Nguyen, Hong Quang Bui, Thi Hoan Duong, Ritesh Kumar Choudhary, and Yunfei Deng. 2025. “Notes on the Genus Thunbergia (Acanthaceae) in Vietnam”. Phytotaxa 697 (3). Auckland, New Zealand:255-64. https://doi.org/10.11646/phytotaxa.697.3.4.