Busato, Jader Galba, et al. “Effects of Water-Soluble Humic Extract and Biofertilizer on Development of Callophyllum Brasiliense Seedlings”. Pesquisa Florestal Brasileira, vol. 36, no. 86, Mar. 2023, pp. 161-8, https://doi.org/10.4336/2016.pfb.36.86.1024.