^Archaeology and culture in Southeast Asia: unraveling the
Nusantao Page 25
Wilhelm Solheim, David Bulbeck, Ambika Flavel - 2006 We know from some later Hoabinhian sites, which developed out of the Son Vi Culture, that coastal adaptation was one of the ecological niches occupied by the Hoabinhian people.
^The Birth of Vietnam - Page 312 Keith Weller Taylor - 1991 "They consider the newly discovered Son-vi culture to belong to the late Paleolithic Age and early Mesolithic Age, Hoa-binh to be a Mesolithic culture, and Bac-son to be an early Neolithic culture. According to carbon- 14 tests, the transition ..."
^Phó Giáo sư Lê Trung Vũ - Lễ hội Việt Nam - Page 263 "Tên chữ của làng là Sơn Vi, nghĩa là vân núi, tên nôm là kẻ Vây, đọc trại thành kẻ Vầy, nên tục ngữ có câu: ..."