Muhammad Muhayyidin, A.H. et al. 2018. Tannin Extraction from Bark of Rhizophora Mucronata Using Soxhlet and Boiling Techniques. International Journal on Advanced Science, Engineering and Information Technology. 8, 6 (Dec. 2018), 2525–2530. DOI:https://doi.org/10.18517/ijaseit.8.6.3899.