Amsah, A. ., Raja Khalif, R. I. A., Pitchayapipatkul, J. ., Rusli, N. D. ., Mat, K. ., & Rahman, M. M. . (2020). Effect of extender supplemented with date palm pollen grain on bovine semen qualities. Journal of Tropical Resources and Sustainable Science (JTRSS), 8(2), 103–107. https://doi.org/10.47253/jtrss.v8i2.629