N. Tuan Nam and L. Quang Vinh, “NEW RECORD OF Theloderma annae Nguyen, Pham, Ngo, Nguyen, Ziegler, 2016 (ANURA: RHACOPHORIDAE) FROM NINH BINH PROVINCE, VIETNAM”, J. Forest. Sci. Technol., no. 5, pp. 104–110, Oct. 2018.