Analysis of information sources in references of the Wikipedia article "หม่า ยฺเหวียน" in Thai language version.
Bach Mã temple in the heart of the '36 streets' of Hanoi was dedicated to Ma Yuan (Mã Viện), a Chinese general in the first century CE (pp. 144-5) [...] temples for Ma Yuan existed not only in the old capital Hanoi, but also in Cổ Loa, as well as in Thanh Hóa and Phúc Yên provinces. Furthermore, she found that in Bắc Ninh where people worshiped the Trưng sisters, they also worshipped Ma Yuan in the same temple (pp. 46-7). All of these are found in northern Vietnam, which is striking.
