[1]
Y. J. J. Putri, D. Desnita, and Y. Satri, “Validity and Practicality of Student Worksheet Integrated by Sound Wave Experiment Set Using Smartphone with Sound Analyzer Basic 1.10.2 and Frequency Generator 2.6 Software”, jpppf, vol. 10, no. 1, pp. 123–138, Jun. 2024.