DR. PINAL J. PATEL, PRIYAL DESAI, HARSHIL MISTRY, HARSH PADSUMBIYA, PROF. BHAVESH P PATEL, MS. SHRADHDHA V. THAKKAR, KINJAL N. PATEL. IoT Based Liquid Level Monitoring System. Design Engineering, p. 13858 - 13866, 19 Nov. 2021.