Van Huong, Vu, 		Tuyen, Tran, 		Dao, Le, AND 		Trung, Dam.
" The Impact of Formalization on Firm Productivity: An Application of the Fa ̈re-Primont Index" <em>VNU JOURNAL OF ECONOMICS AND BUSINESS</em> [Online], Volume 2 Number 5 (25 October 2022)