0.01 Cent per Second: Developing a Cloud-based Cost-effective Audio Transcription System for an Online Video Learning Platform. - Nut Pinyo; Panya Lokaphadhana; Pipat Saengow; Saenyakorn Siangsanoh; Thanapoom Wonnaparhown; Ekapol Chuangsuwanich; Proadpran Punyabukkana; Atiwong Suchato (JCSSE, 2023)