Кобб—Дуглас с человеческим капиталом

The Riau Province has a production function of $Y = AK^a(LH)^{1 - a}$. What is the nature of this function?

[Assume 0 < 1 < a, where Y: real GDP, A: technology, K: amount of capital, L: amount of labour, H: human capital]