Philipines-Asutralian Science and Mathematics Education Project (PASMEP), Western Australian Consortium of Tertiary Institutions, & Gasalao, S. B. (1989). Solve it: Problem solving in Mathematics III. Curtin University of Technology.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philipines-Asutralian Science and Mathematics Education Project (PASMEP), Western Australian Consortium of Tertiary Institutions, و Santiaga B. Gasalao. Solve It: Problem Solving in Mathematics III. Perth Western Aus: Curtin University of Technology, 1989.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philipines-Asutralian Science and Mathematics Education Project (PASMEP), et al. Solve It: Problem Solving in Mathematics III. Curtin University of Technology, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.