Prayitno, T. 2012. ON THE FORMULATION OF GUAGE TRANSFORMATION FOR THE GROSS-PITAEVSKII EQUATION. JRSKT - Jurnal Riset Sains dan Kimia Terapan. 2, 2 (Dec. 2012), 162–165. DOI:https://doi.org/10.21009/JRSKT.022.02.