Gopalakrishnan Perumpuzha. (2016). O N V Ormakalil Sugandham. Prabhath Book House.
シカゴスタイル引用形Gopalakrishnan Perumpuzha. O N V Ormakalil Sugandham. Thiruvananthapuram: Prabhath Book House, 2016.
MLA引用形式Gopalakrishnan Perumpuzha. O N V Ormakalil Sugandham. Prabhath Book House, 2016.
警告: この引用は必ずしも正確ではありません.