VANGNAI, S.; SIRIVATPAITOON, W.; VERASAN, V. Effects of Soil Moisture on Nodulation and Nitrogen Fixation. Agriculture and Natural Resources, Bangkok, Thailand, v. 16, n. 1, p. 12–17, 1982. Disponível em: https://li01.tci-thaijo.org/index.php/anres/article/view/240860. Acesso em: 18 sep. 2026.