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APA Citation
S. Ali, M., Hassan, G. S., Abdelmonem, A. M., Elshamndy, S. K., Elmasry, F., & Yasser, A. M. (2020). the spectrum of charmed quarkonium in non-relativistic quark model using matrix Numerov's method. Journal of Radiation Research and Applied Sciences, 13(1), 226–233. http://access.bl.uk/ark:/81055/vdc_100105292008.0x00001b