Nguyen, Hoang Linh, et al. “First-Principles Study of Electronic and Optical Properties and Photocatalytic Performance of MS (M: Ge, Sn) Monolayer under Strain”. JST: Engineering And Technology For Sustainable Development, vol. 33, no. 2, Apr. 2023, pp. 44-51, doi:10.51316/jst.165.etsd.2023.33.2.7.