Lien, N. T. P., Ha, N. T. T., Tuan, L. V., Ngan, D. H. and Nga, C. T. T. (2018) “Study on solitary wasps of the subfamily Eumeninae (Hymenoptera: Vespidae) in Huu Lien and Na Hang nature reserves, with new records of one genus and three species”, Academia Journal of Biology, 40(3). doi: 10.15625/2615-9023/v40n3.12921.