KUWORNU, JOHN K. M.; NARH JNR, Alfred B.; EGYIR, Irene S.; ONUMAH, Edvard E.; GEBREZGABHER, Solomie. Willingness to pay for excreta pellet fertilizer: Empirical evidence from Ghana. Acta agriculturae Slovenica, Ljubljana, SI, v. 109, n. 2, p. 315–323, 2017. DOI: 10.14720/aas.2017.109.2.14. Disponível em: https://journals.uni-lj.si/aas/article/view/12739.. Acesso em: 12 jun. 2024.