Caturini, E., N. D. Safitri, and S. Sugi. “The Effectiveness of Butterfly Hug in Reducing Anxiety Long-Distance Relationship (LDR) With Parents in Nursing Students”. Basic and Applied Nursing Research Journal, Vol. 4, no. 1, July 2023, pp. 9-19, doi:10.11594/banrj.04.01.02.