1. Pratama F., Susanto W.H., Purwantiningrum I., Making printed coconut sugar from naturally fermented sap (Study of the Effect of Anti-Inversion Concentration and Sodium Metabisulfite), JFA, 34 (2014)
2. Zuliana C., Widyastuti E., Susanto W.H., Making Coconut Ants Sugar (Study of Coconut Sugar Ph and Sodium Bicarbonate Concentration), JFA, 41 (2015)
3. Martono A., Budiningsih S., Watemin W., Analysis of Economic Feasibility of the Agroindustry of Printed Coconut Sugar in Jalatunda Village, Mandiraja District. Agritech,91 (2007)
4. Tarigans D.D., Diversification of Coconut Farming as an Effort to Increase Farmers’ Income, Perspektif,42 (2015)