D. I. P. Meliala, J. Silalahi, Y. Yuandani, L. Margata, and D. Satria, “The Role of Coconut Oil to Increase Expression of MMP-9, PDGF-BB, and TGF-β1 in NIH-3T3 Cell Line”, Open Access Maced J Med Sci, vol. 7, no. 22, pp. 3733–3736, Nov. 2019.