GUNNAR PERSSON, Karl. A Simple Method for the Measurement of Total Factor Productivity in Poorly Documented Economies. Nationaløkonomisk Tidsskrift, [S. l.], v. 130, 1992. Disponível em: https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/63965. Acesso em: 5 dec. 2025.