« Mai Thu... Le Pho's other close friend, Vu Cao Dam, had already decided to live in France, and when the three men were later joined by their fellow Ecole des Beaux-Arts the woman artist Le Thi Luu (Class III, 1927 1932), these four [...]. »
↑Lý Trực Dũng, Biếm họa Việt Nam, Hanoï, NXB Mỹ Thuật, , p. 46.