Vilu, Subashini, Rokiah Rozita Ahmad, Ummul Khair Salma Din, and Mohd Almie Alias. 2023. “RESOLVING DELAY DIFFERENTIAL EQUATIONS WITH HOMOTOPY PERTURBATION AND SUMUDU TRANSFORM ”. Jurnal Teknologi 85 (3):145-51. https://doi.org/10.11113/jurnalteknologi.v85.18937.