“Single Origin: The Potential of Market Innovation for Increasing the Competitiveness of SMEs in Chocolate Industry in Indonesia” (2018) International Journal of Engineering Research and Advanced Technology (ijerat) (E-ISSN 2454-6135) DOI: 10.31695/IJERAT, 4(5), pp. 63–71. doi:10.31695/IJERAT.2018.3269.