Robert Burns, John Gibson Lockhart, James Currie (1835). “The works of Robert Burns: containing his life, by John Lockhart, esq. ; the poetry and correspondence of Dr. Currie's edition ; biographical sketches of the poet by himself, Gilbert Burns, Professor Stewart, and others”, p.18
Elbert Hubbard (2009). “Love, Life & Work: Being a Book of Opinions Reasonably Good-Natured Concerning How to Attain the Highest Happiness for One's Self with the Least Possible Harm to Others”, p.133, The Floating Press
"What does it mean to be Asian American? / The passing of Cal Prof. Ronald Takaki, who helped define the term, leads Jeff Yang to reflect on its relevance in the Age of Obama" by Jeff Yang, www.sfgate.com. June 4, 2009.