Subrata, D. G., and A. Mais. “PENGARUH TERAPI APPLIED – BEHAVIOUR ANALYSIS (ABA) MELALUI PENDEKATAN ANTECEDENT – BEHAVIOUR – COSEQUENCE (A – B – C) TERHADAP PENINGKATAN KEPATUHAN SISWA DOWN SYNDROME KELAS 2 SDLB ABCD PGRI KALIPURO”. SPEED Journal : Journal of Special Education, vol. 1, no. 2, Feb. 2018, pp. 47-56, doi:10.31537/speed.v1i2.21.