Ariel C. Pedrano and Ricky F. Rulete (2017) “On the total product cordial labeling on the cartesian product of $P_m \times C_n$, $C_m \times C_n$ and the generalized Petersen graph $P(m, n)$”, Malaya Journal of Matematik. India, 5(03), pp. 531–539. doi: 10.26637/mjm503/007.