SalatnayaH., WidodoW. D., Winarno and FuahA. M. (2020) “The Influence of Environmental Factors on the Activity and Propolis Production of Tetragonula laeviceps”, Jurnal Ilmu Produksi dan Teknologi Hasil Peternakan, 8(2), pp. 67-71. doi: 10.29244/jipthp.8.2.67-71.