Tengsuthiwat, J., Boonyasopon, P., Dangtungee, R., Siengchin, S. “Characterization of poly(hydroxybutyrate-co-hydroxyvalerate)/ Sisal Fiber/Clay bio-composites Prepared by Casting Technique”, Periodica Polytechnica Mechanical Engineering, 60(2), pp. 103–112, 2016. https://doi.org/10.3311/PPme.8721