Sulaeman, M., H. F. . Kusnandar, and R. S. . Sundari. “Memperbaiki Kinerja Pemasaran Melalui Pelatihan Kewirausahaan, Riset Pasar, Dan Inovasi Produk: Improving Marketing Performance Through Entrepreneurship Training, Market Research, And Product Innovation”. Indonesian Journal of Cultural and Community Development, vol. 1, no. 2, Sept. 2018, p. 10.21070/ijccd2018716, doi:10.21070/ijccd.v1i2.716.