San Juan contributed the entry for "Ethnicity" in volume 2 of Historisch-Kritisches Worterbuch des Marxismus edited by Wolfgang Fritz Haug (Berlin and Hamburg: Argument, 1997). His essays, translated into German, French, Italian, Chinese, and other languages, have been published in Das Argument, Marxismo Oggi, Chung-Wai Literary Monthly (Taiwan), L'Homme et la Societe, Weg und Ziel, Contemporary Monthly(Taiwan), and other venues. His pathbreaking essay, "Surrealism and Revolution," was translated into French and published by Professor Henri Behar of the Sorbonne in the online Web
Two significant contributions of San Juan to Philippine culture and literature are his translation into English of selected poems by Amado Hernández; and the re-discovery of Carlos Bulosan's writings, evidenced in his numerous anthologies of Bulosan's works; and his critical essays on Hernandez in "The Radical Tradition in Philippine Literature,"" ""Toward A People's Literature,"" "" Writing and National Liberation,"" "" The Philippine Temptation,"" ""After Postcolonialilsm,"" ""Hegemony and Strategies of Transgression,"" and "Only by Struggle".