Chandra, E., Sisca, Andy Wijaya, Lora Ekana Nainggolan and Onita Sari Sinaga (2022) “The Impact of Transformational Leaderhsip on Voice Behavior in Walubi Pematangsiantar”, International Journal of Science, Technology & Management, 3(2), pp. 330-336. doi: 10.46729/ijstm.v3i2.483.