Phan, Q. T.; Keetapithchayakul, T. S. First Descriptions of the Final Stadium Larva of Heliogomphus Chaoi Karube, 2004 and the Adult Female of Microgomphus Jurzitzai Karube, 2000 from Vietnam (Odonata: Gomphidae). Zootaxa 2023, 5318, 83-96.