Ullur Janma Sathavarshaghosha. (1981). Mahakavi Ullur Prathimanachchadana Smaranika. Ullur Janma Sathavarshaghosha Committee.
シカゴスタイル引用形Ullur Janma Sathavarshaghosha. Mahakavi Ullur Prathimanachchadana Smaranika. Thiruvananthapuram: Ullur Janma Sathavarshaghosha Committee, 1981.
MLA引用形式Ullur Janma Sathavarshaghosha. Mahakavi Ullur Prathimanachchadana Smaranika. Ullur Janma Sathavarshaghosha Committee, 1981.
警告: この引用は必ずしも正確ではありません.