Nam, Nguyen, 		Tho, Nguyen, 		Ngoc, Nguyen, AND 		Trung, Pham.
" Application of 1H DOSY NMR in Measurement of Polystyrene Molecular Weights" <em>VNU Journal of Science: Natural Sciences and Technology</em> [Online], Volume 36 Number 2 (25 June 2020)