P. Lapvongwatana, N. Kungskulniti, N. Charoenca, E. Avila-Tang, H. Wipfli, and S. L.Hamann, “A Cross-sectional Study of Secondhand Smoke Exposure among Non-smoking Women and Children in Thai Households”, Environ. Nat. Resour. J., vol. 14, no. 1, pp. 51–57, May 2016.