Formatação de strings usando LISTAGG no Oracle. Escapando aspas simples ` ' `

SELECT LISTAGG('''' || student_name || '''',',') 
       WITHIN GROUP (ORDER BY student_name)
FROM students;

SELECT LISTAGG(DBMS_ASSERT.ENQUOTE_LITERAL(student_name),',') 
       WITHIN GROUP (ORDER BY student_name) AS r
FROM students;