Gopi Krishna, P.; Sreenivasa Ravi, K.; Hari Kishore, K.; KrishnaVeni, K.; N. Siva Rao, K.; D. Prasad, R. Design and Development of Bi-Directional IoT Gateway Using ZigBee and Wi-Fi Technologies With MQTT Protocol. IJET 2018, 7 (2.8), 125-129. https://doi.org/10.14419/ijet.v7i2.8.10344.