化妝品化學 = Cosmetic chemistry / 易光輝等作
化妝品調製學實驗 = Cosmetics preparation laboratory manual / 易光輝,王曉芬,李珮琪作
精油之化學基礎與實務應用 = The chemical basis and applications of essential oils / 易光輝(Yih, Kuang-Hway),王曉芬,李依倩作
精油之化學基礎與實務應用 = The chemical basis and applications of essential oils / 易光輝,王曉芬,李依倩作