DiniyahN., WijanarkoS. B., and PurnomoH., “TEKNOLOGI PENGOLAHAN GULA COKLAT CAIR NIRA SIWALAN (Borassus flabellifer L.) [Brown Sugar Syrup Processing from Siwalan Palm Saps (Borassus flabellifer L.)]”, J. Teknol Industri Pangan, vol. 23, no. 1, p. 53, Jun. 2012.