APA Style

Nanggolan-Sihombing, S. (). Observation on the use of yellow colouring mat. ters in some food products sold in Jakarta . Jakarta: Asian conggres of nutrition.

MLA Style

Nanggolan-Sihombing, S.. "Observation on the use of yellow colouring mat. ters in some food products sold in Jakarta". Jakarta: Asian conggres of nutrition, . print.