Minh Tan, P., Thanh Lam, N., & Tho Nguyen, M. (1999). HEATS OF FORMATION OF COMPOUNDS: QUANTUM CALCULATIONS INSTEAD OF EXPERIMENTAL METHODS. Science and Technology Development Journal, 2(4&5), 84-89. https://doi.org/https://doi.org/10.32508/stdj.v2i4&5.3633