Dương , M.T. and Cao , T.T.H. 2019. THE SECOND BETTI NUMBER OF NILPOTENT JORDAN-TYPE LIE ALGEBRAS. HCMUE Journal of Science. 16, 12 (Dec. 2019), 877. DOI:https://doi.org/10.54607/hcmue.js.16.12.2550(2019).