Tan, L.D. and Chung, D.H. 2014. Litterfall production of the natural - recovered secondary forest at the Melinh station for biodiversity, Vinhphuc province. Academia Journal of Biology. 29, 1 (Nov. 2014), 40–46. DOI:https://doi.org/10.15625/0866-7160/v29n1.5358.