Abdullah, N. I., and A. Sarudin. “IMPAK PENGGUNAAN BAHASA DALAM IKLAN KHIDMAT MASYARAKAT PETRONAS BERDASARKAN TEORI LINGUISTIK SISTEMIK FUNGSIONAL (TLSF): IMPACT OF THE USE OF LANGUAGE IN SOCIETY ADVERTISING PETRONAS BASED ON FUNCTIONAL SYSTEMIC LINGUISTIC THEORY (TLSF)”. Proceedings of The ICECRS, vol. 1, no. 1, Oct. 2016, p. picecrs.v1i1.544, doi:10.21070/picecrs.v1i1.544.